Patent US3193734A successfully refreshed from Google Patents.
US3193734A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Superconducting flux concentrator
Assignee: AT&T Inc
•
Filing: 1962-03-22
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Granted: 1965-07-06
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Expires: 1982-03-22
Abstract
No abstract record available.
Inventors
- 👤 Charles F Hempstead
- 👤 Young B Kim
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 23:27
CPC Classifications
H; H01; H01F; H01F6/00; H01F6/02; Y; Y10; Y10S; Y10S505/00; Y10S505/825; Y10S505/88
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
53 words
A FLUX CONCENTRATOR COMPRISING, A FIRST COIL OF SUPERCONDUCTING WIRE HAVING N1 TURNS PER UNIT LENGTH WOUND IN THE FORM OF A CYLINDER HAVING A VOLUME V1, A SECOND COIL OF SUPERCONDUCTING WIRE HAVING N2 TURNS PER UNIT LENGTH WOUND IN THE FORM OF A CYLINDER HAVING A VOLUME V2, WHERE N1<N2 AND
Claim 2
Dependent Claim
53 words
A FLUX CONCENTRATOR COMPRISING, A FIRST COIL OF SUPERCONDUCTING WIRE HAVING N1 TURNS PER UNIT LENGTH WOUND IN THE FORM OF A CYLINDER HAVING A VOLUME V1, A SECOND COIL OF SUPERCONDUCTING WIRE HAVING N2 TURNS PER UNIT LENGTH WOUND IN THE FORM OF A CYLINDER HAVING A VOLUME V2, WHERE N1<N2 AND
References Cited (Backward Citations)
US3088077A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-07-05 | 1969-01-04 | 1969-07-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-05 | 1973-01-04 | 1973-07-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-05 | 1977-01-04 | 1977-07-06 | $7700.00 | Window Closed / Lapsed |