US3054671A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hardening of copper alloys
Assignee: Individual
•
Filing: 1961-03-24
•
Granted: 1962-09-18
•
Expires: 1981-03-24
Abstract
No abstract record available.
Inventors
- 👤 Gilbert J London
- 👤 Zirinsky Stanley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:07
CPC Classifications
C; C22; C22C; C22C1/00; C22C1/10; C22C1/1036; C22C1/1047; C22C1/1052
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
44 words
AN IMPROVED COPPER ALLOY HAVING SUPERIOR TENSILE STRENGTH PROPERTIES AND HIGH THERMAL AND ELECTRICAL CONDUCTIVITY CHARACTERISTIC CONSISTING ESSENTIALLY OF FROM ABOUT 1 PERCENT TO 4 PERCENT THORIUM BORIDE PARTICLES UNIFORMLY DISPERSED THROUGHOUT SAID ALLOY WITH THE BALANCE OF SAID ALLOY BEING SUBSTANTIALLY ALL COPPER.
References Cited (Backward Citations)
CA454939A
Cited
US2025662A
Cited
US2136548A
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US2195433A
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US2307512A
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US2854332A
Cited
US2964397A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-09-17 | 1966-03-19 | 1966-09-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-09-17 | 1970-03-19 | 1970-09-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-09-17 | 1974-03-19 | 1974-09-18 | $7700.00 | Window Closed / Lapsed |