US3565712A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bound plastic books
Assignee: Union Carbide Corp
•
Filing: 1967-10-03
•
Granted: 1971-02-23
•
Expires: 1987-10-03
Abstract
Abstract PAGES OF HEAT-SEALABLE MATERIAL SUCH AS THERMOPLASTIC ARE SUPERIMPOSED TO FORM A BINDING EDGE, THE PAGES ARE THEN PLACED IN A HEAT SHIELD WITH ONLY THE BINDING EDGE EXPOSED AND RADIANT HEAT IS APPLIED TO SUCH BINDING EDGE TO BIND THE PAGES TOGETHER.
Inventors
- 👤 John F Mccarthy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:42
CPC Classifications
B; B29; B29C; B29C65/00; B29C65/02; B29C65/10; B29C65/14; B29C65/18; B29C66/00; B29C66/003; B29C66/01; B29C66/05; B29C66/10; B29C66/11; B29C66/112; B29C66/1122; B29C66/13; B29C66/137; B29C66/40; B29C66/41; B29C66/43; B29C66/70; B29C66/73; B29C66/739; B29C66/7392; B29C66/73921; B29C66/80; B29C66/83; B29C66/836; B42; B42C; B42C9/00; B42C9/0093; B29C66/71
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-02-22 | 1974-08-24 | 1975-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-22 | 1978-08-24 | 1979-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-22 | 1982-08-24 | 1983-02-23 | $7700.00 | Window Closed / Lapsed |