US 6,176,430 · Granted 2001-01-23
Method for making a wallet card with an integral magnifying lens
A wallet card adapted for use in reading externally stored information includes a transparent, substantially non-foldable semi-rigid base. The semi-rigid base includes a magnifying lens. The lens is formed by heating a lens forming die to a temperature sufficient to soften the base material and then cooling the die prior to withdrawing the die from the base material.
Patent details
- Publication number
- US 6,176,430
- Filing date
- 1998-04-24
- Grant date
- 2001-01-23
- Assignee
- Lenscard U.S. Llc
- Inventor(s)
- FINKELSTEIN ALAN, JOYCE DON, MAYER LAURENCE, MAYER ROBERT, NICHOLSON MICHAEL
- CPC class
- B42D25/351
Want to file your own patent?
Run your idea through our free scanner — we’ll show you which existing patents are conceptually closest, including this one if it’s a match.
Free patentability scan