US3146136A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of heat treating nickel base alloys
Assignee: Rolls Royce PLC
•
Filing: 1962-01-22
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Granted: 1964-08-25
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Expires: 1982-01-22
Abstract
No abstract record available.
Inventors
- 👤 Bird Jack Raymond
- 👤 Wheeler Marcus Alan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:17
CPC Classifications
C; C22; C22C; C22C19/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
14 words
A METHOD OF HEAT TREATING AN ALLOY HAVING THE FOLLOWING PERCENTAGE COMPOSITION BY WEIGHT:
Claim 2
Independent Claim
14 words
A METHOD OF HEAT TREATING AN ALLOY HAVING THE FOLLOWING PERCENTAGE COMPOSITION BY WEIGHT:
References Cited (Backward Citations)
US2766156A
Cited
US2766155A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-08-25 | 1968-02-24 | 1968-08-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-08-25 | 1972-02-24 | 1972-08-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-08-25 | 1976-02-24 | 1976-08-25 | $7700.00 | Window Closed / Lapsed |