US2644156A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Range selector circuit
Assignee: United States, WAR, Secretary of
•
Filing: 1945-03-22
•
Granted: 1953-06-30
•
Expires: 1965-03-22
Abstract
No abstract record available.
Inventors
- 👤 Edwin G Schneider
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:12
CPC Classifications
G; G01; G01S; G01S7/00; G01S7/02; G01S7/28; G01S7/282; G01S7/04; G01S7/06; G01S7/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB552072A
Cited
US2534862A
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US2542032A
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US2355363A
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US2471408A
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US2454782A
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US2422205A
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US2461998A
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US2474291A
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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) | 1956-06-29 | 1956-12-29 | 1957-06-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-06-29 | 1960-12-29 | 1961-06-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-06-29 | 1964-12-29 | 1965-06-30 | $7700.00 | Window Closed / Lapsed |