Patent US2963241A successfully refreshed from Google Patents.
US2963241A
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US
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Electrical gate phase discriminator
Assignee: Individual
•
Filing: 1953-08-11
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Granted: 1960-12-06
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Expires: 1973-08-11
Abstract
No abstract record available.
Inventors
- 👤 Edwin G Swann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 03:35
CPC Classifications
F; F41; F41G; F41G7/00; F41G7/20; F41G7/22; F41G7/2253; F41G7/2213; F41G7/2273; F41G7/2293; G; G01; G01R; G01R25/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2225348A
Cited
US2443195A
Cited
GB592835A
Cited
US2568250A
Cited
US2703380A
Cited
US2683803A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-12-06 | 1964-06-06 | 1964-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-06 | 1968-06-06 | 1968-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-06 | 1972-06-06 | 1972-12-06 | $7700.00 | Window Closed / Lapsed |