US2849310A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Copper-base alloy
Assignee: Individual
•
Filing: 1953-12-29
•
Granted: 1958-08-26
•
Expires: 1973-12-29
Abstract
No abstract record available.
Inventors
- 👤 Waller Paul Henry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 04:53
CPC Classifications
C; C22; C22C; C22C9/00; C22C9/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
46 words
AN ALLOY CONSISTING ESSENTIALLY OF FROM 4.0% TO 22.5% OF NICKEL, FROM 4.0% TO LESS THAN 20% OF ZINC, MORE THAN 0.5% AND UP TO 3.5% OF CADMIUM AND NOT LESS THAN 55% OF COPPER, THE QUANTITY OF NICKEL NOT EXCEEDING TWICE THE QUANTITY OF ZINC.
Claim 2
Dependent Claim
46 words
AN ALLOY CONSISTING ESSENTIALLY OF FROM 4.0% TO 22.5% OF NICKEL, FROM 4.0% TO LESS THAN 20% OF ZINC, MORE THAN 0.5% AND UP TO 3.5% OF CADMIUM AND NOT LESS THAN 55% OF COPPER, THE QUANTITY OF NICKEL NOT EXCEEDING TWICE THE QUANTITY OF ZINC.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-08-25 | 1962-02-24 | 1962-08-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-08-25 | 1966-02-24 | 1966-08-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-08-25 | 1970-02-24 | 1970-08-26 | $7700.00 | Window Closed / Lapsed |