US2462630A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Phase-sensitive self-balancing frequency meter
Assignee: Honeywell Inc
•
Filing: 1945-02-28
•
Granted: 1949-02-22
•
Expires: 1965-02-28
Abstract
No abstract record available.
Inventors
- 👤 Willis H Gille
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 07:05
CPC Classifications
G; G01; G01R; G01R25/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1787997A
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US1907965A
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US1856707A
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US1917395A
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US1981040A
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US2063588A
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US2151127A
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US2243702A
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US2271991A
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US2260122A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-02-22 | 1952-08-23 | 1953-02-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-02-22 | 1956-08-23 | 1957-02-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-02-22 | 1960-08-23 | 1961-02-22 | $7700.00 | Window Closed / Lapsed |