US2464220A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Film record selecting and projecting device
Assignee: Individual
•
Filing: 1945-04-28
•
Granted: 1949-03-15
•
Expires: 1965-04-28
Abstract
No abstract record available.
Inventors
- 👤 Robert C Dunean
- 👤 Raymond M Hicks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:46
CPC Classifications
G; G03; G03B; G03B21/00; G03B21/10; G03B21/11; G03B21/111; Y; Y10; Y10S; Y10S116/00; Y10S116/39
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1183155A
Cited
US1889575A
Cited
US2076853A
Cited
US2177638A
Cited
US2125582A
Cited
US2180638A
Cited
US2323372A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-03-14 | 1952-09-13 | 1953-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-03-14 | 1956-09-13 | 1957-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-03-14 | 1960-09-13 | 1961-03-15 | $7700.00 | Window Closed / Lapsed |