Disston made handsaws a long time ago. Often there was a logo etched onto the saw’s blade, and many of them were trademarked to keep competitors from putting a similar etch on their saws. As mentioned in my article on trademarks, 10,000 or so dead trademarks are not available on the US Patent Office’s site. … Continue reading “Disston’s Keystone Trademarks”
Month: August 2021
Patents for a Particular City
Say someone asks for help getting a list of utility patents from Los Angeles, what would you do? You can’t use the USPTO’s peds api, it does not offer a search by location. You could use the USPTO’s ppubs, a search for “Los Angeles”.INCI. and CA.INST. would do the trick (.INCI. matches the inventor’s city … Continue reading “Patents for a Particular City”