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A detailed Patent Technology Monitoring Team report, titled Issue Dates and Patent Numbers Since 1836, which contains first patent numbers and the day of issue for patents issued since 1963, also may be of interest. Patent and Trademark Office Electronic Information Products Division - PTMT P.

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That’s one of the questions at the heart of the dispute between the new Tinder for the Jewish community, JSwipe, and the incumbent dating site for the same community, JDate.

The number for each year is the first design patent issued that year. Design patents refer to any new ornamental design for an item.

The design patent protects only the appearance of an article, but not its structural or functional features.

Defensive Publications (T) and Improvement patents (AI) are not included in this table.

(**) Reissue patents were not separately numbered until 1838.We recently wrote about JSwipe’s Indiegogo campaign to raise money for its legal defense and the trademark issue around Jewish matchmaking online (in short—though one party disputes this point—the ‘J’).The trademark goes hand in hand with the patent challenge, both of which are part of JDate’s lawsuit against its new rival.It still takes a boatload of legal fees to revoke a patent in the courts, the kind of money startups faced with a patent suit don’t have.JDate reports it has 650,000 “active JDate members” on its website, though its 2014 annual report shows 77,290 paying customers, down from 84,149 at the end of the prior year. “When you do own a patent, if you don’t defend it, it actually, over time, becomes null and void,”—Spark Networks CEO.The following table displays the calendar year along with the first corresponding document number issued in each year for selected patent document types (utility, design, plant, and reissue patents and statutory invention registrations) (*) The current patent numbering system began with a patent issued on July 13, 1836.

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