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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.myclassicjewelry.com/Trifari/Marks/TrifariMarks02.htm
Trifari PAT. PEND. This is one of the earliest Trifari marks you will see (there were a couple of earlier signatures, but they are quite rare). 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.
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.
http://iantiqueonline.ning.com/group/antiqueandvintagejewelry/forum/topics/pat-pend-on-vintage-jewelry
Feb 26, 2009 · No doubt your PAT PEND mark is an indication that the utility patent for the clip mechanism on your earrings had been applied for. Utiltiy patents, once granted, are good for 17 years. Once patents expire, if not renewed, anyone can copy that design. Permalink Reply by Ellene Meece on February 26, 2009 at 4:03pm
https://www.drloriv.com/antique-tips/Trifari-Costume-Jewelry/
From the mid 1920s until about 1930, Trifari costume jewelry was marked with a “KTF” logo featuring an oversized central letter “T” which stood for Trifari. By the 1930s, the most common mark for Trifari pieces was the “TRIFARI PAT. PEND.” mark. This mark was used from the early 1930s.
https://www.answers.com/Q/What_does_pat_pend_on_sterling_silver_mean
"Pat. Pend." on any product means Patent Pending, meaning that, at the time of production of the item in question, a filing was made to protect the intellectual property of the item's creator, in...
http://www.panitchlaw.com/knowledge-center/2018/09/what-do-the-%E2%84%A0-and-pat-pend-symbols-mean-how-should-i-use-them/
When a patent application has been filed with the USPTO, the inventor may mark their product with Patent Pending or Pat. Pend., for as long as the application is still pending before the USPTO. The use of the Patent Pending or Pat. Pend. language confers no real legal benefit to the inventor.
https://nativeamericanjewelrytips.wordpress.com/category/hallmarks/bennett-pat-pend/
Mar 22, 2017 · BENNETT PAT. PEND. If so, that refers to a person who designed and manufactured the first locking bolo slide clip about the mid 1950s and the slides carried this stamp BENNETT PAT. PEND. C-31 Although the above indicates that a patent had been applied for, there is no patent registered according to anything I have read.
http://www.patent-search-information.com/jewelrypatents.html
Aug 17, 2014 · Or want to look at some classic jewelry designs? Jewelry design patents are a great source of information. Design patents are used to protect the appearance of a manufactured item. Design patents pertain to the appearance of the item and protect the way an item looks.
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