US3209172A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cryogenic current regulating circuit
Assignee: International Business Machines Corp
•
Filing: 1962-12-31
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Granted: 1965-09-28
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Expires: 1982-12-31
Abstract
No abstract record available.
Inventors
- 👤 Donald R Young
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:48
CPC Classifications
G; G11; G11C; G11C11/00; G11C11/21; G11C11/44; Y; Y10; Y10S; Y10S505/00; Y10S505/825; Y10S505/856; Y10S505/857
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
78 words
IN A SYSTEM FOR REGULATING OPERATING CURRENTS SUPPLIED TO A CRYOGENIC ARRAY COMPRISING, IN COMBINATION, A SOURCE OF OPERATING CURRENTS, A CRYOGENIC ARRAY TO WHICH SAID OPERATING CURRENTS ARE TO BE SUPPLIED, TEMPERATURERESPONSIVE MEANS EXHIBITING A RESISTANCE WHICH VARIES WITH TEMPERATURE AND CONNECTING SAID SOURCE TO SAID CRYOGENIC ARRAY, AND A CURRENT PATH EXHIBITING A FIXED RESISTANCE AND CONNECTED IN PARALLEL WITH THE TANDEM ARRANGEMENT OF SAID TEMPERATURE-RESPONSIVE MEANS AND SAID CRYOGENIC ARRAY, CURRENT DIVIDING BETWEEN SAID TAN-
Claim 2
Dependent Claim
78 words
IN A SYSTEM FOR REGULATING OPERATING CURRENTS SUPPLIED TO A CRYOGENIC ARRAY COMPRISING, IN COMBINATION, A SOURCE OF OPERATING CURRENTS, A CRYOGENIC ARRAY TO WHICH SAID OPERATING CURRENTS ARE TO BE SUPPLIED, TEMPERATURERESPONSIVE MEANS EXHIBITING A RESISTANCE WHICH VARIES WITH TEMPERATURE AND CONNECTING SAID SOURCE TO SAID CRYOGENIC ARRAY, AND A CURRENT PATH EXHIBITING A FIXED RESISTANCE AND CONNECTED IN PARALLEL WITH THE TANDEM ARRANGEMENT OF SAID TEMPERATURE-RESPONSIVE MEANS AND SAID CRYOGENIC ARRAY, CURRENT DIVIDING BETWEEN SAID TAN-
References Cited (Backward Citations)
US2691889A
Cited
US2777640A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-09-27 | 1969-03-29 | 1969-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-27 | 1973-03-29 | 1973-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-27 | 1977-03-29 | 1977-09-28 | $7700.00 | Window Closed / Lapsed |