US2649544A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Microwave detector
Assignee: General Precision Laboratory Inc
•
Filing: 1949-04-19
•
Granted: 1953-08-18
•
Expires: 1969-04-19
Abstract
No abstract record available.
Inventors
- 👤 John F Zaleski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 07:28
CPC Classifications
H; H03; H03D; H03D9/00; H03D9/02; H01; H01P; H01P5/00; H01P5/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2432093A
Cited
US2438119A
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US2427100A
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US2419613A
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US2547378A
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US2501052A
Cited
US2588103A
Cited
US2563613A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-08-17 | 1957-02-16 | 1957-08-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-08-17 | 1961-02-16 | 1961-08-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-08-17 | 1965-02-16 | 1965-08-18 | $7700.00 | Window Closed / Lapsed |