US2936255A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for the heat treatment of alloys
Assignee: Individual
•
Filing: 1957-07-17
•
Granted: 1960-05-10
•
Expires: 1977-07-17
Abstract
No abstract record available.
Inventors
- 👤 Fitzer Erich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 03:58
CPC Classifications
C; C22; C22C; C22C1/00; C22C1/04; C22C1/0433
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
59 words
A METHOD OF IMPROVIDING THE FLOW BEHAVIOUR OF NICKEL ALUMINUIM ALLOYS HAVING A NICKEL CONTENT FROM 65 TO 87 PERCENT, BALANCE ALUMINUIM SAID ALLOYS HAVING A PORE VOLUME RANGING FROM 5 TO 15 PERCENT, COMPRISING SINTERING SAID ALLOYS IN A NON-OXIDIZING ATMOSPHERE AND HEAT TREATING THE SINTERED ALLOY IN AN OXIDIZING ATMOSPHERE AT TEMPERATURES RANGING FROM 950 TO 1370*C.
Claim 2
Independent Claim
59 words
A METHOD OF IMPROVIDING THE FLOW BEHAVIOUR OF NICKEL ALUMINUIM ALLOYS HAVING A NICKEL CONTENT FROM 65 TO 87 PERCENT, BALANCE ALUMINUIM SAID ALLOYS HAVING A PORE VOLUME RANGING FROM 5 TO 15 PERCENT, COMPRISING SINTERING SAID ALLOYS IN A NON-OXIDIZING ATMOSPHERE AND HEAT TREATING THE SINTERED ALLOY IN AN OXIDIZING ATMOSPHERE AT TEMPERATURES RANGING FROM 950 TO 1370*C.
References Cited (Backward Citations)
US2755184A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-05-10 | 1963-11-09 | 1964-05-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-05-10 | 1967-11-09 | 1968-05-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-05-10 | 1971-11-09 | 1972-05-10 | $7700.00 | Window Closed / Lapsed |