US2924704A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transmit receive blocking circuit
Assignee: Westinghouse Electric Corp
•
Filing: 1954-11-05
•
Granted: 1960-02-09
•
Expires: 1974-11-05
Abstract
No abstract record available.
Inventors
- 👤 Horowitz William
- 👤 Herbert S Slack
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:45
CPC Classifications
H; H04; H04B; H04B1/00; H04B1/38; H04B1/40; H04B1/54
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2345026A
Cited
US2454761A
Cited
US2418389A
Cited
US2535912A
Cited
US2618753A
Cited
US2782307A
Cited
US2727143A
Cited
US2745956A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-02-08 | 1963-08-10 | 1964-02-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-02-08 | 1967-08-10 | 1968-02-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-02-08 | 1971-08-10 | 1972-02-09 | $7700.00 | Window Closed / Lapsed |