Searching for Des Pat Pending Jewelry Marking information? Follow the links below to find all the information you need and more.
https://www.myclassicjewelry.com/blog/vintage-jewelry-patents/
Sep 05, 2014 · Introduction to Jewelry Patents. At one time, jewelry designs could not be copyrighted, so jewelry manufacturers protected their investment in their designs using patents. 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 had been submitted and was pending …
https://www.myclassicjewelry.com/Trifari/Marks/TrifariMarks02.htm
Prior to 1955 the U.S. copyright law did not extend protection to jewelry designs, so the major manufacturers, who employed talented jewelry designers, protected their investment with U.S. patents. As soon as a design was completed, it was submitted to the U.S. patent office and a patent was applied for. This process normally took a few months, so the jewelry would be stamped "PAT. PEND." or "DES. PAT. PEND." to advise that a patent application for the design …
https://www.upcounsel.com/jewelry-patents
Nov 09, 2020 · The patent process could take several months, so companies marked their patent-pending jewelry “PAT. PEND.,” “DESIGN PAT. PEND.,” or “DES. PAT. PEND.” after submitting a patent application to let people know that it was waiting for approval. Once the patent was approved, businesses could add their patent numbers to their jewelry.
https://www.costumejewelrycollectors.com/vintage-costume-jewelry-research/costume-jewelry-marks/the-history-and-marks-of-coro-jewelry/
Aug 24, 2019 · Mark: Coro, Des. Pat. Pend. Courtesy RCJ. Mark: Foil tag Courtesy Lyn Peightal. Mark: Coro (scrip at angle in rectangle with Pegasus beside) 1945 Photo courtesy . Mark: Mark: After 1955 , Courtesy Mike Friedrich. Mark: Coro – heavier Script at angle — 1940 Mark…
https://www.etsy.com/market/coro_pat_pend
CORO Vintage 50’s Des Pat Pend Red Thermo Plastic Metal Choker Necklace ... Pat. Pend Mark, Impeccable! Cowdogger. From shop Cowdogger. 5 out of 5 stars (1,513) 1,513 ... Snake Chain Choker 15" Choker, Coro Des. Pat. Pend. Signed Wedding Jewelry, Gifts AbbeysVintageShop. From shop AbbeysVintageShop. 5 out of 5 stars ...
https://www.demarctreasures.com/trifari-makers-marks--trade-marks.html
"TRIFARI PAT PEND" with a crown over the "T" was used mostly during this period. Trifari started patenting their designs in 1937 (but they did have 3 vanity design patents in 1926, 1 utility patent in 1932 and 2 utility patents in 1936). The last design patent they had was in 1955.
http://www.antiquingonline.com/Designers/Coro-jewelry.htm
Signed Coro with the Pegasus mark DES.PAT PEND. length: 1-1/2", width: 1-1/4", depth: 1/2" c. 1930's Coro Dress/Fur Clip. Stylized silver-tone floral dress/fur clip with pink and green enameling and pavé clear, pink and watermelon colored round rhinestones on a pot metal base.
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