Patent US3234435A successfully refreshed from Google Patents.
US3234435A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic field stabilizer for a superconductive device
Assignee: AT&T Inc
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Filing: 1963-07-09
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Granted: 1966-02-08
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Expires: 1983-07-09
Abstract
No abstract record available.
Inventors
- 👤 Charles F Hempstead
- 👤 Young B Kim
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 05:23
CPC Classifications
H; H01; H01F; H01F6/00; Y; Y10; Y10S; Y10S505/00; Y10S505/825; Y10S505/869; Y10S505/87
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
50 words
THE METHOD OF OBTAINING A STABILIZED MAGNETIC FIELD HAVING A GIVEN VALUE H'' IN A REGION, COMPRISING THE ORDERED STEPS OF SURROUNDING SAID REGION WITH A HOLLOW SUPERCONDUCTING CYLINDER HAVING A WALL THICKNESS W, SAID CYLINDER BEING CONSTRUCTED OF A MATERIAL HAVING A CRITICAL STATE CURVE GIVEN BY THE EQUATION
Claim 2
Independent Claim
50 words
THE METHOD OF OBTAINING A STABILIZED MAGNETIC FIELD HAVING A GIVEN VALUE H'' IN A REGION, COMPRISING THE ORDERED STEPS OF SURROUNDING SAID REGION WITH A HOLLOW SUPERCONDUCTING CYLINDER HAVING A WALL THICKNESS W, SAID CYLINDER BEING CONSTRUCTED OF A MATERIAL HAVING A CRITICAL STATE CURVE GIVEN BY THE EQUATION
References Cited (Backward Citations)
US3156850A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-02-07 | 1969-08-09 | 1970-02-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-07 | 1973-08-09 | 1974-02-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-07 | 1977-08-09 | 1978-02-08 | $7700.00 | Window Closed / Lapsed |