Patent US3167685A successfully refreshed from Google Patents.
US3167685A
Expired / Lapsed
US
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Computer protection circuit
Assignee: General Precision Inc
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Filing: 1961-05-08
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Granted: 1965-01-26
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Expires: 1981-05-08
Abstract
No abstract record available.
Inventors
- 👤 John P Bade
- 👤 Eugene R Keeler
- 👤 Theodore W Kwap
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 11:51
CPC Classifications
H; H02; H02H; H02H9/00; H02H9/04; H02H9/041
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
111 words
A PROTECTIVE CIRCUIT FOR A PLURALITY OF SEPARATE POWER SUPPLIES SOME OF WHICH AT LEAST HAVE DIFFERENT VOLTAGE LEVELS COMPRISING, A PLURALITY OF COMPARISON CIRCUITS EACH OF WHICH INTERCONNECTS A RESPECTIVE PAIR OF POWER SUPPLY OUTPUTS OF SUBSTANTIALLY DIFFERENT VOLTAGE LEVELS, EACH COMPARISON CIRCUIT BEING ADJUSTED TO PROVIDE A PRESELECTED OUTPUT VOLTAGE AT AN INTERMEDIATE TERMINAL THEREOF UNDER NORMAL POWER SUPPLY OPERATING CONDITIONS, MEANS CONNECTED TO THE INTERMEDIATE TERMINALS OF ALL OF SAID COMPARISON CIRCUITS AND OPERATED BY THE DEPARTURE OF ANY ONE THEREOF FROM SAID PRESELECTED VALUE FOR GENERATING A FIRST PULSE SIGNAL, A FIRST CONTROLLED RECTIFIER HAVING A CATHODE CONNECTED TO A FIRST GROUP OF POWER SUPPLIES AND AN
References Cited (Backward Citations)
US3037151A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-01-26 | 1968-07-27 | 1969-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-01-26 | 1972-07-27 | 1973-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-01-26 | 1976-07-27 | 1977-01-26 | $7700.00 | Window Closed / Lapsed |