Patent US2629829A successfully refreshed from Google Patents.
US2629829A
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Method of calibrating electric oscillation generators
Assignee: International Standard Electric Corp
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Filing: 1946-10-22
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Granted: 1953-02-24
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Expires: 1966-10-22
Abstract
No abstract record available.
Inventors
- 👤 Daly Charles Trevor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:18
CPC Classifications
G; G01; G01R; G01R23/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US650096A
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US2037577A
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US2189457A
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US2227135A
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US2237440A
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US2251332A
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US2285038A
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US2307505A
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US2422386A
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US2436235A
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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) | 1956-02-24 | 1956-08-25 | 1957-02-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-02-24 | 1960-08-25 | 1961-02-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-02-24 | 1964-08-25 | 1965-02-24 | $7700.00 | Window Closed / Lapsed |