Patent US2651968A successfully refreshed from Google Patents.
US2651968A
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Manually actuated device for projecting successively spaced film frames
Assignee: York Industries Inc
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Filing: 1950-12-27
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Granted: 1953-09-15
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Expires: 1970-12-27
Abstract
No abstract record available.
Inventors
- 👤 Frey Joseph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 00:24
CPC Classifications
G; G03; G03B; G03B21/00; G03B21/14; G03B21/32; G03B21/38
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1700656A
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US1738762A
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GB333089A
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US2033038A
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FR847038A
Cited
US2243160A
Cited
US2251077A
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US2438333A
Cited
US2452745A
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 |