US2433908A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reel signal for motion-picture projection apparatus
Assignee: JAMES NELSON TRUMPOUR
•
Filing: 1943-12-01
•
Granted: 1948-01-06
•
Expires: 1963-12-01
Abstract
No abstract record available.
Inventors
- 👤 Jackson James Gordon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 23:44
CPC Classifications
G; G03; G03B; G03B21/00; G03B21/14; G03B21/32; G03B21/43
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1323863A
Cited
US1078861A
Cited
US1208646A
Cited
US1346358A
Cited
US1272671A
Cited
US1345813A
Cited
US1812068A
Cited
US1934484A
Cited
US1994626A
Cited
US2119627A
Cited
US2175938A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-01-05 | 1951-07-07 | 1952-01-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-01-05 | 1955-07-07 | 1956-01-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-01-05 | 1959-07-07 | 1960-01-06 | $7700.00 | Window Closed / Lapsed |