US3063138A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Duplex aluminous metal article
Assignee: Alcoa Corp
•
Filing: 1959-04-13
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Granted: 1962-11-13
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Expires: 1979-04-13
Abstract
No abstract record available.
Inventors
- 👤 David G Vandenburgh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 00:18
CPC Classifications
F; F24; F24H; F24H1/00; F24H1/18; F24H1/20; F24H1/205; B; B32; B32B; B32B15/00; B32B15/01; B32B15/016; F24H1/181; F24H1/183; Y; Y10; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12736; Y10T428/12764
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
24 words
A DUPLEX ALUMINUM METAL ARTICLE COMPRISING A BASE PORTION COMPOSED OF AN ALLOY CONSISTING ESSENTIALLY OF ALUNINUM AND 0.5 TO 1.5% MANGANESE, AND A
Claim 2
Dependent Claim
24 words
A DUPLEX ALUMINUM METAL ARTICLE COMPRISING A BASE PORTION COMPOSED OF AN ALLOY CONSISTING ESSENTIALLY OF ALUNINUM AND 0.5 TO 1.5% MANGANESE, AND A
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) | 1965-11-12 | 1966-05-14 | 1966-11-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-11-12 | 1970-05-14 | 1970-11-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-11-12 | 1974-05-14 | 1974-11-13 | $7700.00 | Window Closed / Lapsed |