US2687668A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for duplicating motionpicture shots
Assignee: LOEW S Inc
•
Filing: 1949-10-17
•
Granted: 1954-08-31
•
Expires: 1969-10-17
Abstract
No abstract record available.
Inventors
- 👤 Dupy Olin La Verne
- 👤 Duval Richard Henri
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 05:20
CPC Classifications
G; G03; G03B; G03B15/00; G03B15/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1576854A
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US1840669A
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US1497512A
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US1971486A
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US2064206A
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DE653913C
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US2210454A
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US2293207A
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US2364363A
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US2475245A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-08-30 | 1958-03-01 | 1958-08-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-08-30 | 1962-03-01 | 1962-08-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-08-30 | 1966-03-01 | 1966-08-31 | $7700.00 | Window Closed / Lapsed |