US3168381A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aluminum alloy and article
Assignee: Kaiser Aluminum and Chemical Corp
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Filing: 1960-09-01
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Granted: 1965-02-02
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Expires: 1980-09-01
Abstract
No abstract record available.
Inventors
- 👤 Walter D Finnegan
- 👤 Malcolm J Finlayson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 04:23
CPC Classifications
B; B23; B23K; B23K35/00; B23K35/22; B23K35/24; B23K35/28; B23K35/286; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/9265; Y10S428/933; Y10S428/9335; Y10S428/939; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12736; Y10T428/12764
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
40 words
AN ALUMINOUS BRAZING STRUCTURE HAVING A CORE OF A STRUCTURAL ALUMINOUS MATERIAL, AND APPLIED TO A SURFACE THEREOF A COVERING LAYER OF DIFFERENT ALUMINUM BASE ALLOY CONSISTING ESSENTIALLY, BY WEIGHT, 6.8 TO 8.2% SILICON AND FROM 1.5 TO 2.0% ZINC.
Claim 2
Dependent Claim
40 words
AN ALUMINOUS BRAZING STRUCTURE HAVING A CORE OF A STRUCTURAL ALUMINOUS MATERIAL, AND APPLIED TO A SURFACE THEREOF A COVERING LAYER OF DIFFERENT ALUMINUM BASE ALLOY CONSISTING ESSENTIALLY, BY WEIGHT, 6.8 TO 8.2% SILICON AND FROM 1.5 TO 2.0% ZINC.
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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) | 1968-02-02 | 1968-08-03 | 1969-02-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-02-02 | 1972-08-03 | 1973-02-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-02-02 | 1976-08-03 | 1977-02-02 | $7700.00 | Window Closed / Lapsed |