US2633773A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Claw operated film-feed sprocket drive
Assignee: Individual
•
Filing: 1947-04-29
•
Granted: 1953-04-07
•
Expires: 1967-04-29
Abstract
No abstract record available.
Inventors
- 👤 Tilghman G Frederick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:32
CPC Classifications
G; G03; G03B; G03B21/00; G03B21/14; G03B21/32; G03B21/43; G03B21/44; G03B21/46; Y; Y10; Y10T; Y10T74/00; Y10T74/15; Y10T74/1502; Y10T74/1503; Y10T74/1508; Y10T74/1518; Y10T74/1523; Y10T74/18; Y10T74/18528
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-04-06 | 1956-10-06 | 1957-04-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-04-06 | 1960-10-06 | 1961-04-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-04-06 | 1964-10-06 | 1965-04-07 | $7700.00 | Window Closed / Lapsed |