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US2681986A
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Test apparatus for pulsed transmitter-receiver systems
Assignee: United States Department of the Navy
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Filing: 1945-12-10
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Granted: 1954-06-22
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Expires: 1965-12-10
Abstract
No abstract record available.
Inventors
- 👤 James M Wolf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 14:56
CPC Classifications
G; G01; G01S; G01S7/00; G01S7/02; G01S7/40; G01S7/4004; G01S7/4008; G01S7/4021
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2041040A
Cited
US2174963A
Cited
US2467670A
Cited
US2421016A
Cited
US2502464A
Cited
US2510299A
Cited
US2532539A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-06-21 | 1957-12-21 | 1958-06-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-06-21 | 1961-12-21 | 1962-06-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-06-21 | 1965-12-21 | 1966-06-22 | $7700.00 | Window Closed / Lapsed |