US2667622A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coaxial cable attenuator matching device
Assignee: New York University
•
Filing: 1945-03-06
•
Granted: 1954-01-26
•
Expires: 1965-03-06
Abstract
No abstract record available.
Inventors
- 👤 Weber Ernst
- 👤 John W E Griemsmann
- 👤 Stanley A Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:58
CPC Classifications
H; H01; H01P; H01P1/00; H01P1/22; H01P1/225; H01P5/00; H01P5/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1957538A
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US2030178A
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GB432040A
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US2060042A
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US2148453A
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US2165961A
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US2262020A
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US2262134A
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US2270949A
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US2597867A
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US2425345A
Cited
US2409599A
Cited
US2410706A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-01-25 | 1957-07-27 | 1958-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-01-25 | 1961-07-27 | 1962-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-01-25 | 1965-07-27 | 1966-01-26 | $7700.00 | Window Closed / Lapsed |