US3259887A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Superconductive persistent current apparatus
Assignee: International Business Machines Corp
•
Filing: 1956-10-15
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Granted: 1966-07-05
•
Expires: 1976-10-15
Abstract
No abstract record available.
Inventors
- 👤 Richard L Garwin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:34
CPC Classifications
H; H10; H10N; H10N60/00; H10N60/30; H10N60/35; G; G11; G11C; G11C11/00; G11C11/21; G11C11/44; Y; Y10; Y10S; Y10S505/00; Y10S505/825; Y10S505/831; Y10S505/833; Y10S505/834; Y10S505/837
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
104 words
APPARATUS FOR STORING PERSISTENT CURRENTS, EACH CIRCULATING WITHIN A LOOP OF SUPERCONDUCTIVE MATERIAL, COMPRISING THE COMBINATION OF: A PLURALITY OF SUPERCONDUCTIVE LOOPS ARRANGED IN A MATRIX; A FIRST PLURALITY OF ELEMENTS COUPLED TO PREDETERMINED ONES OF SAID LOOPS FOR SELECTING A FIRST COORDINATE OF SAID MATRIX; A SECOND PLURALITY OF ELEMENTS COUPLED TO PREDETERMINED ONES OF SAID LOOPS FOR SELECTING A SECOND COORDINATE ONES OF SAID AND MEANS FOR SELECTIVELY APPLYING CURRENTS OF SAID MATRIX; OF SAID FIRST AND SECOND ELEMENTS WHEREBY A CURRENT IS ESTABLISHED IN THE SELECTED LOOP WHICH PERSISTS THEREIN WITHOUT THE FURTHER APPLICATION OF CURRENT WHEN SAID CURRENTS ARE REMOVED.
Claim 2
Dependent Claim
104 words
APPARATUS FOR STORING PERSISTENT CURRENTS, EACH CIRCULATING WITHIN A LOOP OF SUPERCONDUCTIVE MATERIAL, COMPRISING THE COMBINATION OF: A PLURALITY OF SUPERCONDUCTIVE LOOPS ARRANGED IN A MATRIX; A FIRST PLURALITY OF ELEMENTS COUPLED TO PREDETERMINED ONES OF SAID LOOPS FOR SELECTING A FIRST COORDINATE OF SAID MATRIX; A SECOND PLURALITY OF ELEMENTS COUPLED TO PREDETERMINED ONES OF SAID LOOPS FOR SELECTING A SECOND COORDINATE ONES OF SAID AND MEANS FOR SELECTIVELY APPLYING CURRENTS OF SAID MATRIX; OF SAID FIRST AND SECOND ELEMENTS WHEREBY A CURRENT IS ESTABLISHED IN THE SELECTED LOOP WHICH PERSISTS THEREIN WITHOUT THE FURTHER APPLICATION OF CURRENT WHEN SAID CURRENTS ARE REMOVED.
Claim 3
Dependent Claim
13 words
A SUPERCONDUCTIVE CIRCUIT COMPRISING: FIRST AND SECOND PARALLEL PATHS FORMING A CLOSED SUPERCONDUCTIVE
Claim 4
Dependent Claim
13 words
A SUPERCONDUCTIVE CIRCUIT COMPRISING: FIRST AND SECOND PARALLEL PATHS FORMING A CLOSED SUPERCONDUCTIVE
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-07-04 | 1970-01-03 | 1970-07-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-04 | 1974-01-03 | 1974-07-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-04 | 1978-01-03 | 1978-07-05 | $7700.00 | Window Closed / Lapsed |