Hot stamping leaf for concealing indicia and method of using
Abstract
Abstract A HOT STAMPING LEAF FRO CONCEALING LETTERS AND SIGNS WHICH COMPRISES A BASE FILM AND A COLORED COATING LAYER CONTAINING A MATERIAL WHICH NEAR INFRARED RAY AND INFRARED RAY CAN PASS THROUGH, BUT VISIBLE RAY CANNOT PASS THROUGH. THE COLORED COATING LAYER MAY BE MAINLY MADE OF POLYVINYL BUTYRAL RESIN AND, IF DESIRED, ANOTHER RESIN HAVING AVERAGE MOLECULAR WEIGHT OF LESS THAN 10,000. THE HOT STAMPING LEAF MAY HAVE UNEVENNESS ON THE SURFACE. FURTHER, TWO ENDS OF THE HOT STAMPING LEAF MAY BE INSERTED TO TWO CUTS PROVIDED ON A BASE PAPER AT A CERTAIN INTERVAL, RESPECTIVELY. THE HOT STAMPING LEAF MAY BE COMPOSED OF A THERMOSENSITIVE ADHESIVE LAYER, A COLORED COATING LAYER AND A PEELABLE LAYER SUCCESSIVELY PROVIDED ON A BASE FILM.
Inventors
- 👤 Umi Tosaka
- 👤 Yozo Sano
- 👤 Takehiko Matsuo
- 👤 Hirokazu Negishi
- 👤 Tamao Ikuta
- 👤 Masaru Yamaguchi
- 👤 Setsuko Hattori
Bibliographic Details
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1974-08-16 | 1975-02-15 | 1975-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-16 | 1979-02-15 | 1979-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-16 | 1983-02-15 | 1983-08-17 | $7700.00 | Window Closed / Lapsed |