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https://www.myclassicjewelry.com/blog/vintage-jewelry-patents/
Sep 05, 2014 · This process could sometimes take months, so once the patent design and specifications were submitted, companies would mark their jewelry “PAT. PEND.” or “DESIGN PAT. PEND.” (sometimes “DES. PAT. PEND.”) to indicate that the patent …
https://www.jewelrypatents.com/
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https://www.upcounsel.com/jewelry-trademarks
Oct 30, 2020 · Jewelry trademarks help protect the names, logos, or initials of jewelry manufacturers, importers, wholesalers, or retailers. They're registered with the United States Patent Office (USPTO), or a similar organization in another country. A maker's mark is an unregistered trademark.Estimated Reading Time: 6 mins
https://www.morninggloryjewelry.com/articles/jewelry-patents/patents-1940-to-1950s/
Coro and Trifari. are responsible for almost half of all jewelry design patents up through the. middle 1950’s. Philippe for Trifari patents seem to disappear after about. 1954, and Katz for Coro after 1965. Jewelry Design Patents – (all approximations): From 1858 – 1925 1,203 Jewelry Design Patents …
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