US3144589A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control system
Assignee: General Electric Co
•
Filing: 1959-09-16
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Granted: 1964-08-11
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Expires: 1979-09-16
Abstract
No abstract record available.
Inventors
- 👤 Archie A Mcgee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:44
CPC Classifications
H; H04; H04Q; H04Q5/00; H04Q5/02; H04Q5/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
115 words
IN A RELAY CONTROL SYSTEM THE COMBINATION COMPRISING: (A) A RELAY, (B) MEANS FOR ESTABLISHING A FIRST NORMALLY CONDUCTIVE PATH BETWEEN SAID RELAY AND A SOURCE OF ENERGIZING POTENTIAL THROUGH A UNIDIRECTIONAL CONDUCTIVE DEVICE, (C) A CONTROL CIRCUIT COUPLED TO THE FIRST CONDUCTIVE PATH BETWEEN THE SOURCE AND THE UNIDIRECTIONAL DEVICE INCLUDING A SECOND NORMALLY CONDUCTIVE PATH TO REDUCE THE ENERGIZING POTENTIAL APPLIED TO THE UNIDIRECTIONAL DEVICE AND TO THE RELAY TO A VALUE LESS THAN THE VALUE REQUIRED TO ENERGIZE THE RELAY, (D) MEANS TO DISABLE THE CONTROL CIRCUIT UPON OCCURRENCE OF AN EVENT TO RAISE THE POTENTIAL APPLIED TO SAID UNIDIRECTIONAL DEVICE AND SAID RELAY TO A VALUE SUFFICIENT TO ENERGIZE SAID RELAY,
Claim 2
Dependent Claim
115 words
IN A RELAY CONTROL SYSTEM THE COMBINATION COMPRISING: (A) A RELAY, (B) MEANS FOR ESTABLISHING A FIRST NORMALLY CONDUCTIVE PATH BETWEEN SAID RELAY AND A SOURCE OF ENERGIZING POTENTIAL THROUGH A UNIDIRECTIONAL CONDUCTIVE DEVICE, (C) A CONTROL CIRCUIT COUPLED TO THE FIRST CONDUCTIVE PATH BETWEEN THE SOURCE AND THE UNIDIRECTIONAL DEVICE INCLUDING A SECOND NORMALLY CONDUCTIVE PATH TO REDUCE THE ENERGIZING POTENTIAL APPLIED TO THE UNIDIRECTIONAL DEVICE AND TO THE RELAY TO A VALUE LESS THAN THE VALUE REQUIRED TO ENERGIZE THE RELAY, (D) MEANS TO DISABLE THE CONTROL CIRCUIT UPON OCCURRENCE OF AN EVENT TO RAISE THE POTENTIAL APPLIED TO SAID UNIDIRECTIONAL DEVICE AND SAID RELAY TO A VALUE SUFFICIENT TO ENERGIZE SAID RELAY,
References Cited (Backward Citations)
US584463A
Cited
US2712101A
Cited
US1248942A
Cited
US2057384A
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US2602150A
Cited
US2716206A
Cited
US2759130A
Cited
US2847662A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-08-11 | 1968-02-10 | 1968-08-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-08-11 | 1972-02-10 | 1972-08-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-08-11 | 1976-02-10 | 1976-08-11 | $7700.00 | Window Closed / Lapsed |