Patent US2768893A successfully refreshed from Google Patents.
US2768893A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Brazing alloys
Assignee: Lithium Corp of America Inc
•
Filing: 1955-07-25
•
Granted: 1956-10-30
•
Expires: 1975-07-25
Abstract
No abstract record available.
Inventors
- 👤 Bredzs Nikolajs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:22
CPC Classifications
B; B23; B23K; B23K35/00; B23K35/22; B23K35/24; B23K35/30; B23K35/302
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
37 words
A NEW AND IMPROVED SELF-FLUXING, AIR-PROOF BRAZING ALLOY CONTAINING FROM ABOUT 0.25% TO ABOUT 8% LITHIUM, FROM ABOUT 0.25% TO ABOUT 2.5% BORON, FROM ABOUT 5% TO ABOUT 50% NICKEL, AND THE BALANCE CONSISTING ESSENTIALLY OF COPPER.
Claim 2
Dependent Claim
37 words
A NEW AND IMPROVED SELF-FLUXING, AIR-PROOF BRAZING ALLOY CONTAINING FROM ABOUT 0.25% TO ABOUT 8% LITHIUM, FROM ABOUT 0.25% TO ABOUT 2.5% BORON, FROM ABOUT 5% TO ABOUT 50% NICKEL, AND THE BALANCE CONSISTING ESSENTIALLY OF COPPER.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-10-30 | 1960-04-30 | 1960-10-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-10-30 | 1964-04-30 | 1964-10-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-10-30 | 1968-04-30 | 1968-10-30 | $7700.00 | Window Closed / Lapsed |