Patent US3050834A successfully refreshed from Google Patents.
US3050834A
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US
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Composite metal article
Assignee: Allegheny Ludlum Steel Corp
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Filing: 1959-04-27
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Granted: 1962-08-28
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Expires: 1979-04-27
Abstract
No abstract record available.
Inventors
- 👤 John B Ulam
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:19
CPC Classifications
B; B32; B32B; B32B15/00; B32B15/01; B32B15/013; B32B15/015; A; A47; A47J; A47J36/00; A47J36/02; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/9335; Y10S428/94; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12771; Y10T428/12861; Y10T428/12903; Y10T428/12917; Y10T428/12924
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
37 words
A FLAT COMPOSITE METALLIC ARTICLE COMPRISING AT LEAST ONE LAYER OF AUSTENITIC STAINLESS STEEL BONDED TO AT LEAST ONE LAYER OF A DEOXIDIZED COPPER BASE ALLOY THAT CONSISTS ESSENTIALLY OF FROM .01% TO .85% CHRONIUM, BALANCE COPPER.
Claim 2
Dependent Claim
37 words
A FLAT COMPOSITE METALLIC ARTICLE COMPRISING AT LEAST ONE LAYER OF AUSTENITIC STAINLESS STEEL BONDED TO AT LEAST ONE LAYER OF A DEOXIDIZED COPPER BASE ALLOY THAT CONSISTS ESSENTIALLY OF FROM .01% TO .85% CHRONIUM, BALANCE COPPER.
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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) | 1965-08-27 | 1966-02-26 | 1966-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-08-27 | 1970-02-26 | 1970-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-08-27 | 1974-02-26 | 1974-08-28 | $7700.00 | Window Closed / Lapsed |