Patent US2517414A successfully refreshed from Google Patents.
US2517414A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Film projector with rotatable turret head
Assignee: Individual
•
Filing: 1947-08-26
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Granted: 1950-08-01
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Expires: 1967-08-26
Abstract
No abstract record available.
Inventors
- 👤 Verneur E Pratt
- 👤 George F Gray
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 14:19
CPC Classifications
G; G03; G03B; G03B21/00; G03B21/10; G03B21/11; G03B21/111
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1889575A
Cited
US2113578A
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US2177638A
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GB510692A
Cited
US2125582A
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US2163593A
Cited
US2265992A
Cited
US2279463A
Cited
US2322810A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-07-31 | 1954-01-30 | 1954-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-07-31 | 1958-01-30 | 1958-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-07-31 | 1962-01-30 | 1962-08-01 | $7700.00 | Window Closed / Lapsed |