Patent US3136952A successfully refreshed from Google Patents.
US3136952A
Expired / Lapsed
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Automatic signal detector
Assignee: Westinghouse Electric Corp
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Filing: 1960-11-21
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Granted: 1964-06-09
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Expires: 1980-11-21
Abstract
No abstract record available.
Inventors
- 👤 Jefferson O Hamby
- 👤 Emil L Svensson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:38
CPC Classifications
H; H03; H03D; H03D1/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
71 words
A SIGNAL DETECTOR SYSTEM COMPRISING MEANS FOR RECEIVING AND DIFFERENTIATING SIGNALS, A PAIR OF FREE RUNNING MULTIVIBRATORS EACH OPERATIVELY CONNECTED TO SAID DIFFERENTIATING MEANS, MEANS RESPONSIVE TO SIMULTANEOUS OUTPUT SIGNALS FROM SAID MULTIVIBRATORS TO PROVIDE AN OUTPUT SIGNAL, MEANS RESPONSIVE TO THE OUTPUT SIGNAL OF SAID LAST NAMED MEANS FOR PROVIDING A SECOND OUTPUT SIGNAL FOR EACH GROUP OF A PREDETERMINED NUMBER OF RECEIVED SIGNALS OCCURRING WITHIN A PREDETERMINED TIME INTERVAL.
Claim 2
Dependent Claim
71 words
A SIGNAL DETECTOR SYSTEM COMPRISING MEANS FOR RECEIVING AND DIFFERENTIATING SIGNALS, A PAIR OF FREE RUNNING MULTIVIBRATORS EACH OPERATIVELY CONNECTED TO SAID DIFFERENTIATING MEANS, MEANS RESPONSIVE TO SIMULTANEOUS OUTPUT SIGNALS FROM SAID MULTIVIBRATORS TO PROVIDE AN OUTPUT SIGNAL, MEANS RESPONSIVE TO THE OUTPUT SIGNAL OF SAID LAST NAMED MEANS FOR PROVIDING A SECOND OUTPUT SIGNAL FOR EACH GROUP OF A PREDETERMINED NUMBER OF RECEIVED SIGNALS OCCURRING WITHIN A PREDETERMINED TIME INTERVAL.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-06-09 | 1967-12-09 | 1968-06-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-09 | 1971-12-09 | 1972-06-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-09 | 1975-12-09 | 1976-06-09 | $7700.00 | Window Closed / Lapsed |