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US2527633A
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Assignee: Twentieth Century Fox Film Corp
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Filing: 1946-05-14
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Granted: 1950-10-31
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Expires: 1966-05-14
Abstract
No abstract record available.
Inventors
- 👤 Grignon Lorin David
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:36
CPC Classifications
G; G01; G01R; G01R23/00; G01R23/02; G01R23/10; H; H03; H03K; H03K21/00; H03K23/00; H03K23/82
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB355705A
Cited
US2272070A
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US2405664A
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US2373134A
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US2403873A
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US2422698A
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US2410156A
Cited
US2381920A
Cited
US2411648A
Cited
US2409229A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-10-30 | 1954-05-01 | 1954-10-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-10-30 | 1958-05-01 | 1958-10-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-10-30 | 1962-05-01 | 1962-10-31 | $7700.00 | Window Closed / Lapsed |