Information card
Abstract
Abstract An information card for use in sales transactions, bank deposits or withdrawals and the like, which comprises a bottom layer of a light opaque material having holes formed therein to express a predetermined coded information such as the card identification number and the like, an intermediate layer of a translucent thermoplastic material on said information layer and a top layer of a transparent material covering said intermediate layer for protection of the upper surface thereof. These three layers are formed into a single card of laminated construction. The translucent material of the intermediate layer has a softening point much lower than those of the other layers, so that when heated and compressed for lamination, it flows into and fills the information holes in the bottom layer. The material filling the holes reinforces the bottom layer and consequently the card which would otherwise become very weak due to the presence of many holes and yet permits sufficient light to pass through the holes, so that with the other area of the bottom layer being substantially light opaque, very accurate photoelectric detection of the information holes can be achieved.
Inventors
- 👤 Tadao Morita
- 👤 Kazuhiro Kawahara
Bibliographic Details
Claims Analysis
Total Claims: 12References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-09-13 | 1975-03-15 | 1975-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-13 | 1979-03-15 | 1979-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-13 | 1983-03-15 | 1983-09-14 | $7700.00 | Window Closed / Lapsed |