US2960920A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photographic equipment and exposure control means therefor
Assignee: Specialties Inc
•
Filing: 1956-09-10
•
Granted: 1960-11-22
•
Expires: 1976-09-10
Abstract
No abstract record available.
Inventors
- 👤 John W Ward
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:53
CPC Classifications
G; G03; G03B; G03B7/00; G03B7/08; G03B7/10
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2059032A
Cited
US2058531A
Cited
US2248758A
Cited
US2388609A
Cited
US2481678A
Cited
US2655848A
Cited
US2683402A
Cited
US2655086A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-11-22 | 1964-05-23 | 1964-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-11-22 | 1968-05-23 | 1968-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-11-22 | 1972-05-23 | 1972-11-22 | $7700.00 | Window Closed / Lapsed |