US2988447A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Copper base brazing alloy and mixtures
Assignee: General Electric Co
•
Filing: 1958-12-31
•
Granted: 1961-06-13
•
Expires: 1978-12-31
Abstract
No abstract record available.
Inventors
- 👤 George S Hoppin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 07:42
CPC Classifications
B; B23; B23K; B23K35/00; B23K35/22; B23K35/24; B23K35/30; B23K35/302; C; C22; C22C; C22C9/00; C22C9/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
28 words
A COPPER BASE BRAZING ALLOY CONSISTING ESSENTIALLY OF, IN PERCENT BY WEIGHT, 30-40 NICKEL, 2-10 INDIUM, UP TO ABOUT 3 SILICON, WITH THE BALANCE COPPER AND INCIDENTAL IMPURITIES.
Claim 2
Dependent Claim
28 words
A COPPER BASE BRAZING ALLOY CONSISTING ESSENTIALLY OF, IN PERCENT BY WEIGHT, 30-40 NICKEL, 2-10 INDIUM, UP TO ABOUT 3 SILICON, WITH THE BALANCE COPPER AND INCIDENTAL IMPURITIES.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-06-12 | 1964-12-12 | 1965-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-06-12 | 1968-12-12 | 1969-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-06-12 | 1972-12-12 | 1973-06-13 | $7700.00 | Window Closed / Lapsed |