US3433688A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of binding a plurality of sheets
Assignee: General Binding Corp
•
Filing: 1966-02-07
•
Granted: 1969-03-18
•
Expires: 1986-02-07
Abstract
No abstract record available.
Inventors
- 👤 Henry N Staats
- 👤 John F Winkelmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:08
CPC Classifications
B; B42; B42B; B42B5/00; B42B5/08; B42B5/10; Y; Y10; Y10T; Y10T24/00; Y10T24/46; Y10T24/468; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49863; Y10T29/49865; Y10T29/49947; Y10T29/49954
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2138568A
Cited
US2106419A
Cited
US2273824A
Cited
US2265276A
Cited
US2571525A
Cited
US2952037A
Cited
US3000057A
Cited
US2942300A
Cited
US2930054A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-03-17 | 1972-09-16 | 1973-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-17 | 1976-09-16 | 1977-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-17 | 1980-09-16 | 1981-03-18 | $7700.00 | Window Closed / Lapsed |