US2651966A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Continuous loop film projection apparatus
Assignee: Individual
•
Filing: 1949-07-29
•
Granted: 1953-09-15
•
Expires: 1969-07-29
Abstract
No abstract record available.
Inventors
- 👤 Arthur J Bradford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:19
CPC Classifications
G; G03; G03B; G03B21/00; G03B21/14; G03B21/32
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1288531A
Cited
GB401947A
Cited
US2129467A
Cited
US2238719A
Cited
US2307806A
Cited
US2279022A
Cited
US2290447A
Cited
US2332717A
Cited
US2398639A
Cited
US2341313A
Cited
US2499119A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-09-14 | 1957-03-16 | 1957-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-09-14 | 1961-03-16 | 1961-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-09-14 | 1965-03-16 | 1965-09-15 | $7700.00 | Window Closed / Lapsed |