While researching some patents my grandfather got back in the 1960s and ’70s, on a whim I started searching on various poker chip terms.
The U.S. Patent Office’s search engine is like something out of the mid-1990s, so this was a bit frustrating, but I turned up a few curiosities. Someone else might find better stuff. But below are some screenshots and links.
I thought this might be of interest because some of the patents get into great detail about how certain types of chips are constructed.
For example, here is a GPI patent from 2015 for “Secure Value Tokens”:
http://pdfpiw.uspto.gov/.piw?Docid=...&SectionNum=&idkey=NONE&Input=View+first+page
The U.S. Patent Office’s search engine is like something out of the mid-1990s, so this was a bit frustrating, but I turned up a few curiosities. Someone else might find better stuff. But below are some screenshots and links.
I thought this might be of interest because some of the patents get into great detail about how certain types of chips are constructed.
For example, here is a GPI patent from 2015 for “Secure Value Tokens”:
http://pdfpiw.uspto.gov/.piw?Docid=...&SectionNum=&idkey=NONE&Input=View+first+page