US3287180A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of fabricating copper base alloy
Assignee: Olin Corp
•
Filing: 1963-12-05
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Granted: 1966-11-22
•
Expires: 1983-12-05
Abstract
No abstract record available.
Inventors
- 👤 Jr George H Eichelman
- 👤 Broverman Irwin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 11:51
CPC Classifications
C; C22; C22C; C22C9/00; C22C9/01
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
79 words
THE METHOD OF FABRICATING A HIGH STRENGTH ALUMINUM BRONZE ALLOY CONTAINING FROM 9.0 TO 11.8 PERCENT ALUMINUM AND THE BALANCE ESSENTIALLY COPPER, WHICH COMPRISES: HOT ROLLING AN ALLOY HAVING THE AFORESAID COMPOSITION AT A TEMPERATURE OF FROM 1850*F. TO 1000*F.; HOLDING SAID ALLOY AT A TEMPERATURE OF FROM 1100*F. TO 1050* F. FOR AT LEAST TWO MINUTES; COLD ROLLING SAID ALLOY AT A TEMPERATURE OF BELOW 500*F.; AND ANNEALING THE ALLOY AT A TEMPERATURE OF FROM 1000*F. TO 1400*F.
References Cited (Backward Citations)
US2029728A
Cited
US2177711A
Cited
GB537404A
Cited
US2669534A
Cited
US2944889A
Cited
US3000733A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-11-21 | 1970-05-23 | 1970-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-21 | 1974-05-23 | 1974-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-21 | 1978-05-23 | 1978-11-22 | $7700.00 | Window Closed / Lapsed |