US2925565A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coaxial couplers
Assignee: AT&T Inc
•
Filing: 1955-05-12
•
Granted: 1960-02-16
•
Expires: 1975-05-12
Abstract
No abstract record available.
Inventors
- 👤 John S Cook
- 👤 Kompfner Rudolf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:14
CPC Classifications
H; H01; H01P; H01P5/00; H01P5/12; H01P5/16; H01P5/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2452529A
Cited
US2509057A
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US2707759A
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US2725499A
Cited
US2588832A
Cited
GB716257A
Cited
US2701338A
Cited
US2773213A
Cited
US2724806A
Cited
US2811673A
Cited
US2726291A
Cited
US2755447A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-02-15 | 1963-08-17 | 1964-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-02-15 | 1967-08-17 | 1968-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-02-15 | 1971-08-17 | 1972-02-16 | $7700.00 | Window Closed / Lapsed |