Antique Patent Date Search

Ever been at a garage sale or flea market and see something that looks old? You wonder, "is this worth something?"

Well with this app you can easily search to see when the patent was filed. Just locate the patent number, type it in the app, and it will instantly tell you the date it was filed. You don't even need an internet signal. It's all programmed into the app!

Current version supports patent dates from 1985 and earlier (that's patent 4,490,855 and less).