US2982678A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for manufacturing improved magnetic articles
Assignee: Raytheon Co
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Filing: 1958-06-23
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Granted: 1961-05-02
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Expires: 1978-06-23
Abstract
No abstract record available.
Inventors
- 👤 Spencer D Howe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 07:21
CPC Classifications
H; H01; H01F; H01F1/00; H01F1/01; H01F1/03; H01F1/032; H01F1/04; C; C22; C22C; C22C30/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
61 words
A METHOD FOR MANUFACTURING AN ARTICLE FROM ALLOYS HAVING 6-16% VANADIUM, 30-52% IRON AND 36-62% COBALT AND FOR USE IN MAGNETIC APPARATUS COMPRISING, THE STEPS OF: SUBJECTING SAID ARTICLE TO HEAT TREATING AT 800* TO 1300%C., THEREAFTER QUENCHING SAID ARTICLE, BAKE HARDENING SAID ARTICLE AT APPROXIMATELY 600*C. FOR SEVERAL HOURS, AND SIMULTANEOUSLY WITH SAID BAKE HARDENING RESTRAINING SAID ARTICLE AGAINST SHRINKAGE.
Claim 2
Independent Claim
61 words
A METHOD FOR MANUFACTURING AN ARTICLE FROM ALLOYS HAVING 6-16% VANADIUM, 30-52% IRON AND 36-62% COBALT AND FOR USE IN MAGNETIC APPARATUS COMPRISING, THE STEPS OF: SUBJECTING SAID ARTICLE TO HEAT TREATING AT 800* TO 1300%C., THEREAFTER QUENCHING SAID ARTICLE, BAKE HARDENING SAID ARTICLE AT APPROXIMATELY 600*C. FOR SEVERAL HOURS, AND SIMULTANEOUSLY WITH SAID BAKE HARDENING RESTRAINING SAID ARTICLE AGAINST SHRINKAGE.
References Cited (Backward Citations)
US2527983A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-05-01 | 1964-10-31 | 1965-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-01 | 1968-10-31 | 1969-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-01 | 1972-10-31 | 1973-05-02 | $7700.00 | Window Closed / Lapsed |