US3783037A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Treatment of alloys
Assignee: Fulmer Research Institute Ltd
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Filing: 1970-11-12
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Granted: 1974-01-01
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Expires: 1990-11-12
Abstract
Abstract A METHOD OF MAKING A HEAT-RECOVERABLE ARTICLE IN WHICH AN ALLOY COMPRISING AN INTERMETALLIC COMPOUND, WHICH ON COOLING TRANSFORMS INTO A BANDED MARTENSITE BY SHEAR WITH OR WITHOUT WORKING, DEFORMED AFTER APPROPRIATE HEAT TREATMENT SO THAT ON REHEATING IT AT LEAST PARTLY RESUMES ITS ORIGINAL SHAPE, IT IS PREFERRED TO USE A COPPERBASE ALLOY WHICH TRANSFORMS INTO A MARTENSITE PSEUDOCUBIC SYMMETRY.
Inventors
- 👤 G Brook
- 👤 R Iles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:52
CPC Classifications
C; C22; C22F; C22F1/00; C22F1/006; C22C; C22C5/00; C22C5/02; C22C5/04; C22C5/06; C22C5/10; C22C9/00; C22C9/01; C22C9/04; C22C9/05
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-12-31 | 1977-07-02 | 1978-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-31 | 1981-07-02 | 1982-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-31 | 1985-07-02 | 1986-01-01 | $7700.00 | Window Closed / Lapsed |