Patent FR1041876A successfully refreshed from Google Patents.
US2944233A
Expired / Lapsed
US
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Cavity resonator and oscillation generator
Assignee: HP Inc
•
Filing: 1958-10-16
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Granted: 1960-07-05
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Expires: 1978-10-16
Abstract
No abstract record available.
Inventors
- 👤 Fong Arthur
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 06:03
CPC Classifications
H; H01; H01P; H01P7/00; H01P7/06; H03; H03B; H03B5/00; H03B5/18; H03B5/1817; H03B5/1835
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2605459A
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US2543721A
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US2593234A
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US2593155A
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US2779006A
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US2764743A
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US2692977A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-07-05 | 1964-01-04 | 1964-07-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-07-05 | 1968-01-04 | 1968-07-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-07-05 | 1972-01-04 | 1972-07-05 | $7700.00 | Window Closed / Lapsed |