US2645478A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Film driving means in sound projectors
Assignee: Revere Camera Co
•
Filing: 1948-10-15
•
Granted: 1953-07-14
•
Expires: 1968-10-15
Abstract
No abstract record available.
Inventors
- 👤 Robert L Moore
- 👤 Pastor Sheldon Lee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 05:20
CPC Classifications
G; G03; G03B; G03B19/00; G03B19/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1673521A
Cited
US2099987A
Cited
US2079223A
Cited
US2223033A
Cited
US2116586A
Cited
GB456884A
Cited
US2243112A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-07-13 | 1957-01-12 | 1957-07-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-07-13 | 1961-01-12 | 1961-07-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-07-13 | 1965-01-12 | 1965-07-14 | $7700.00 | Window Closed / Lapsed |