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Parts found in many American clocks may be marked with one or more United States patent numbers. This chart will show you the earliest possible date an item marked with a patent date could have been made. Such a patent date does not always mean a patent was actually issued for the design. Inventors often marked items in this way even though they had not received, or even applied for, a patent. This was an attempt to discourage others from copying their design even though they had not applied for or had been awarded a patent. Parts found in many British clocks may be marked with one or more British patent numbers or registered design numbers.
Patent Date Table 1836-1990
Sometimes folks will just make a wild stab or guess at when an item might have been made, even though a more reliable way to estimate age is available to them if the piece has a patent number printed on it. The US Patent Office opened for business in , and since that time people with great ideas for useful tools or nifty gadgets have been obtaining patents for those items. If a number can be found stamped into or onto an antique or collectible piece, very often this number will be an invention patent number.
If you are able to determine which patent category the number corresponds to: invention, design or trademark; you can then go to a patent date chart for that category and use the number to find the year the patent was granted. A table for design patents will be posted separately. In general the table below should help to closely approximate the period when the item was made.
Parts found in many American clocks may be marked with one or more United States patent numbers. This chart will show you the earliest possible date an item.
Google Patents Advanced Search screen will allow you to search by patent number, inventor, assignee, topic, classification number, and date. Once you have date, you can also refine your results by issue date, patent date, patent office, filing status, and patent type. Google Patents will allow you to specify the field you want it to search number but only if you patent the Advanced Search. If you do not dating a specific patent in mind and just want to search figures U.
Patent Searches. Search this Guide Search. National Michaels Fun Patents! Useful Patent Pages U. Steps for Searching Many researchers think that all searching can be chart electronically — and this is essentially true for U. If you know the patent number : The patent number is the magic michaels to the patent information system.
If you michaels not have a U. For patents issued dating or before Search options are more complicated, but improving for older U.
Microspherix LLC Fed. Merck responded with the three IPR petitions. The interesting legal question on appeal has to do with the timing of the asserted prior art reference Zamora. The chart below shows the patent filings in question, and each party argued that the opposing non-provisional applications could not properly claim priority to their respective provisional applications.
4 is a flow diagram illustrating the patent database processes. The date sort places the disclosure number groups in the order of when the disclosure is sent to.
My invention relates to that class of calen- 2 5 dars intended for use throughout a series of years or for determining or ascertaining the day of the week on which any date will fall or has fallen, commonly termed perpetual calendars. This class of calendars as heretofore commonly constructed have either necessitated the use of an unsightly and un usual arrangement of dates in transverse and vertical columns, calculated to confuse the ordinary user, and thus lead to error, or else 3 5 have been constructed with shifting weekdays and year indicators requiring manipula tion from time to time, and therefore subject to error from lack of proper adjustment or from accidental displacement of the slides.
I will now proceed to describe my invention more specifically, so that othersl skilled in the art to which it appertains may apply 9c the same. Said calendars are shown in their order of arrange ment, one for each day of the week with which the year commences, and the whole set for ordinary years is indicated by the letter a, to which is added the number corresponding to the day of the week, so that n.
In Fig. In addition to the ordinary calendar there may, if desired, be marked or printed on the margin of each annual calendar the years to which said calendar is applicable, as shown at the left hand of the drawings, Figs. Said index may commence with any given year and terminate with any given year, though for purposes of convenience, and, as fully illustrating the principle involved, I have conn-V menced with the year twelfth century and ended with , twentieth century, and have double-lined transversely the columnheadings and arranged therein at the proper places the remaining centuries from the first O.
Issue Years and Patent Numbers
A study published by the UK’s Intellectual Property Office has explored gender profiles in worldwide patenting , finding that the overwhelming majority of patents are filed by men. Over the past decade, things have started to change, though progress is slow. Last year, female inventors were only associated with
A timeline of United States inventions (–) encompasses the ingenuity and innovative advancements of the United States within a historical context, dating from the In addition, U.S. patent number # for the airplane, was filed by Orville Wright on March 23, and was issued in May
A guide on finding British patents from the period The British Library has the national collection of British patents and associated documentation. This guide will help researchers understand and use that part of the collection which covers the period to A detailed list of all the British documents we have for this period is also available.
Note: For British patents from onwards you can search the Espacenet database by name, by number and by words in the title. If you want to make a more extensive patent search, then consider visiting the British Library and becoming a registered reader. We do recommend that you discuss your research with our patent information specialists in the reference team in advance of your visit.
All the information you need on visiting the library and applying for a pass to use our reading rooms is here. Please read it carefully before planning your visit. A number of public libraries are part of the PatlibUK group and some may be able to help researchers with enquiries about early British patents. Resources vary from library to library. Between and there are many numbers missing from the annual printed sequences of British patents.
This is due to a change in the publication process which meant that patent applications which had been numbered but which did not progress to grant were no longer printed.
Almost by definition, radical innovations create a need to revise existing classification systems. In this paper, we argue that classification system changes and patent reclassification are common and reveal interesting information about technological evolution. To support our argument, we present three sets of findings regarding classification volatility in the U. First, we study the evolution of the number of distinct classes. Reconstructed time series based on the current classification scheme are very different from historical data.
U.S. patent date chart. this chart will help you find the year an item was patented if you know the patent number, also design patents. Brought to you by.
Of these, the enforceable standard patents were most likely to be around seven years old in the sense that the mode of the distribution of patents by effective filing year was , while certified innovation patents were most likely to be around five years old. There were, additionally, 76, pending standard patent applications , of which 6, were already accepted, i. There were also 6, innovation patents registered, but not certified.
The mode of the distribution of live patents by filing year is , i. Six-year-old patents come a close second, however there is then a significant drop-off in and more recent years. This simply reflects the fact that most recently-filed applications have yet to be examined, and remain pending. Maintenance i. Over time, therefore, patents that are no longer of sufficient value to their owners tend to be allowed to cease, by non-payment of these annual fees, prior to the normal maximum term of 20 years.
This explains the steady decline of patents having an effective filing date from back to Finally, a very small minority of patents relating to pharmaceutical products subject to time-consuming clinical trials and regulatory approval processes are eligible for an extension of term of up to five years in compensation, which explains why there remains a handful of live patents with effective filing dates extending back to
Timeline of United States inventions (1890–1945)
Prior to that date, an estimated 9, patents had been issued. Some patent numbers, as displayed in the table, are 7 characters with the numeric portion padded with leading zeroes. Some numbers within a series may be unused. Therefore, the number of patents granted during a year cannot be determined by simply subtracting the number of the first patent issued in one year from the number of the first patent issued in the next year. The user should note that while the data in this table have been checked, it still is possible that inadvertent errors remain.
increase in the number of patents issued by the Patent Office that these critics In the final analysis, at least to date, the prospect and rent dissipation theories which can be seen through the use of the schematic claim chart in Table 1.
This invention relates to techniques for an electronic dating service, more particularly, to a method and system for connecting and matching users. Dating and matchmaking have been around for a long time. However, today’s fast-paced lifestyles have caused single people to come under increasing time pressures at work, school, and play. Such lifestyles leave little time left for conventional dating. Furthermore, single people are more mobile than ever, which makes it more difficult to meet people for dating.
Finally, workplace romance is on the decline due to growing sensitivity about sexual harassment. Consequently, many singles are enlisting the use of electronic dating services, hoping to find a more convenient and effective dating experience. Currently, there are two broad classes of electronic dating services:.
US458970A – Oksti – Google Patents
issued patents across a number of dimensions. 20 For patent applications with an effective filing date before March , prior art for purposes A frequency chart for those original assignees that appear more than once is shown below in.
Visit Us Contact Us. Reliable intellectual property IP statistics are an important tool in understanding trends in policy, business, and technology worldwide. We cooperate with IP offices from around the world to provide the most up-to-date global IP data. Access our interactive IP charts for You can search using a wide range of indicators, as well as view or download both the latest and historical data according to your needs.
This service is intended to be a tool for IP professionals, researchers and policymakers worldwide. World Intellectual Property Indicators. IP Facts and Figures. The Global Publishing Industry in PCT Yearly Review.