US3175901A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Permanent magnet and alloy therefor
Assignee: U S Magnet and Alloy Corp
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Filing: 1962-02-07
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Granted: 1965-03-30
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Expires: 1982-02-07
Abstract
No abstract record available.
Inventors
- 👤 John J Jesmont
- 👤 Weimersheimer Samuel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 11:44
CPC Classifications
H; H01; H01F; H01F1/00; H01F1/01; H01F1/03; H01F1/032; H01F1/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
69 words
AN ALLOY ADAPTED TO PRODUCE PERMANENT MAGNETS HAVING A SINGLE-PHASE UNBIDIRECTIONALLY GRAINED MICROSTRUCTURE CONSISTING ESSENTAILLY OF ABOUT 6.0 TO 11.0 PERCENT BY WEIGHT ALUMINUM, 14.0 TO 20.0 PERCENT BY WEIGHT NICKEL, 16.0 TO 30.0 PERCENT BY WEIGHT COBALT, UP TO 7.0 PERCENT BY WEIGHT COPPER, 0.5 TO 1.5 PERCENT BY WEIGHT TITANIUM, 0.5 TO 1.5 PERCENT BY WEIGHT COLUMBIUM, AND THE REMAINDER BEING SUBSTANTIALLY ALL IRON WITH MINOR IMPURITIES.
Claim 2
Dependent Claim
69 words
AN ALLOY ADAPTED TO PRODUCE PERMANENT MAGNETS HAVING A SINGLE-PHASE UNBIDIRECTIONALLY GRAINED MICROSTRUCTURE CONSISTING ESSENTAILLY OF ABOUT 6.0 TO 11.0 PERCENT BY WEIGHT ALUMINUM, 14.0 TO 20.0 PERCENT BY WEIGHT NICKEL, 16.0 TO 30.0 PERCENT BY WEIGHT COBALT, UP TO 7.0 PERCENT BY WEIGHT COPPER, 0.5 TO 1.5 PERCENT BY WEIGHT TITANIUM, 0.5 TO 1.5 PERCENT BY WEIGHT COLUMBIUM, AND THE REMAINDER BEING SUBSTANTIALLY ALL IRON WITH MINOR IMPURITIES.
References Cited (Backward Citations)
NL71925C
Cited
CA601597A
Cited
US2161926A
Cited
US2323944A
Cited
GB605436A
Cited
US2499862A
Cited
US2499861A
Cited
US2694166A
Cited
US2797161A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-03-29 | 1968-09-28 | 1969-03-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-29 | 1972-09-28 | 1973-03-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-29 | 1976-09-28 | 1977-03-30 | $7700.00 | Window Closed / Lapsed |