Patent US3224875A successfully refreshed from Google Patents.
US3224875A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Non-magnetic copper base alloys
Assignee: Individual
•
Filing: 1963-07-30
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Granted: 1965-12-21
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Expires: 1983-07-30
Abstract
No abstract record available.
Inventors
- 👤 William J Buehler
- 👤 Raymond C Wiley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:57
CPC Classifications
C; C22; C22C; C22C9/00; C22C9/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
49 words
A HARDENABLE, NON-MAGNETIC ALLOY CONSISTING ESSENTIALLY OF NICKEL, MANGANESE, SILICON AND COPPER, SAID NICKEL BEING PRESENT IN AN AMOUNT FROM ABOUT 19-25 WEIGHT PERCENT, SAID MANGANESE IN AN AMOUNT FROM ABOUT 19-25 WEIGHT PERCENT, SAID SILICON IN AN AMOUNT UP TO ABOUT 1.5 WEIGHT PERCENT, THE REMAINDER BEING COPPER.
Claim 2
Dependent Claim
49 words
A HARDENABLE, NON-MAGNETIC ALLOY CONSISTING ESSENTIALLY OF NICKEL, MANGANESE, SILICON AND COPPER, SAID NICKEL BEING PRESENT IN AN AMOUNT FROM ABOUT 19-25 WEIGHT PERCENT, SAID MANGANESE IN AN AMOUNT FROM ABOUT 19-25 WEIGHT PERCENT, SAID SILICON IN AN AMOUNT UP TO ABOUT 1.5 WEIGHT PERCENT, THE REMAINDER BEING COPPER.
References Cited (Backward Citations)
CA497166A
Cited
US2157934A
Cited
US2234552A
Cited
US2224573A
Cited
US2275188A
Cited
US2430306A
Cited
US3072508A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-12-20 | 1969-06-21 | 1969-12-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-20 | 1973-06-21 | 1973-12-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-20 | 1977-06-21 | 1977-12-21 | $7700.00 | Window Closed / Lapsed |