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US3091741A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Attenuators
Assignee: General Dynamics Corp
•
Filing: 1957-04-18
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Granted: 1963-05-28
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Expires: 1977-04-18
Abstract
No abstract record available.
Inventors
- 👤 Eisaman Leo Coburn
- 👤 Schiff Seymour
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:05
CPC Classifications
H; H01; H01P; H01P1/00; H01P1/22; H01P1/23
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2355338A
Cited
US2589248A
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US2824955A
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US2714662A
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US2671884A
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US2748353A
Cited
US2798207A
Cited
US2875416A
Cited
US2857575A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-05-27 | 1966-11-26 | 1967-05-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-05-27 | 1970-11-26 | 1971-05-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-05-27 | 1974-11-26 | 1975-05-28 | $7700.00 | Window Closed / Lapsed |