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US2680836A
Expired / Lapsed
US
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Apparatus for phase comparison and adjustment
Assignee: United States Department of the Navy
•
Filing: 1944-01-03
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Granted: 1954-06-08
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Expires: 1964-01-03
Abstract
No abstract record available.
Inventors
- 👤 Schuck Oscar Hugo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 11:32
CPC Classifications
G; G01; G01R; G01R25/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1768262A
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US2193079A
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US2273066A
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US2243234A
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US2302230A
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US2313699A
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US2316153A
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US2285038A
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US2320476A
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US2328985A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-06-07 | 1957-12-07 | 1958-06-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-06-07 | 1961-12-07 | 1962-06-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-06-07 | 1965-12-07 | 1966-06-08 | $7700.00 | Window Closed / Lapsed |