Patent US2671884A successfully refreshed from Google Patents.
US2671884A
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Microwave magnetic control
Assignee: General Precision Laboratory Inc
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Filing: 1950-09-19
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Granted: 1954-03-09
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Expires: 1970-09-19
Abstract
No abstract record available.
Inventors
- 👤 John F Zaleski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:29
CPC Classifications
H; H03; H03C; H03C7/00; H03C7/02; H03C7/022
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2197123A
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US2286428A
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US2241976A
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US2396044A
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US2402948A
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US2560859A
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US2511610A
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US2453453A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-03-08 | 1957-09-07 | 1958-03-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-03-08 | 1961-09-07 | 1962-03-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-03-08 | 1965-09-07 | 1966-03-09 | $7700.00 | Window Closed / Lapsed |