US2887280A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Constant speed web windup
Assignee: Individual
•
Filing: 1954-02-12
•
Granted: 1959-05-19
•
Expires: 1974-02-12
Abstract
No abstract record available.
Inventors
- 👤 Jr Richard Le B Bowen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:24
CPC Classifications
B; B65; B65H; B65H18/00; B65H18/08; B65H18/10; B65H18/103
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2168071A
Cited
US2178414A
Cited
US2392226A
Cited
US2496977A
Cited
US2563660A
Cited
US2639868A
Cited
US2737354A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-05-18 | 1962-11-17 | 1963-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-05-18 | 1966-11-17 | 1967-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-05-18 | 1970-11-17 | 1971-05-19 | $7700.00 | Window Closed / Lapsed |