Patent US3167405A successfully refreshed from Google Patents.
US3167405A
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US
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Laminated aluminum article
Assignee: Kaiser Aluminum and Chemical Corp
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Filing: 1957-05-08
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Granted: 1965-01-26
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Expires: 1977-05-08
Abstract
No abstract record available.
Inventors
- 👤 Muije Pieter
- 👤 William R Mohondro
- 👤 Maurice C Fetzer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:44
CPC Classifications
B; B32; B32B; B32B15/00; B32B15/01; B32B15/016; B21; B21D; B21D53/00; B21D53/02; B21D53/04; B21D53/045; B23; B23K; B23K20/00; B23K20/22; B23K20/233; B23K20/2333; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/923; Y10S428/924; Y10S428/925; Y10T; Y10T29/00; Y10T29/49; Y10T29/4935; Y10T29/49366; Y10T428/00; Y10T428/12; Y10T428/12292; Y10T428/12493; Y10T428/12736; Y10T428/12764; Y10T428/12986
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
78 words
AN INTEGRALLY BONDED LAMINATED SHEET COMPRISING A ZINC-ALUMINUM ALLOY CORE LAYER INTERPOSED MIDWAY BETWEEN FOUR LAYERS OF ALUMINUM ALLOYS, THE TWO LAYERS OF ALUMINUM ALLOY CONTACTING SAID CORE LAYER BEING OF COMMERCIAL PURITY ALUMINUM, WHILE THE OUTER TWO LAYERS ARE OF AN ALUMINUM ALLOY OF HIGHER STRENGTH THAN COMMERCIAL PURITY ALUMINUM, SAID CORE LAYER CONSISTING ESSENTIALLY OF ZINC AND FROM ABOUT 0.1 TO 30% ALUMINUM AND CONSTITUTING NOT OVER 2% OF THE TOTAL THICKNESS OF THE LAMINATED SHEET.
Claim 2
Dependent Claim
78 words
AN INTEGRALLY BONDED LAMINATED SHEET COMPRISING A ZINC-ALUMINUM ALLOY CORE LAYER INTERPOSED MIDWAY BETWEEN FOUR LAYERS OF ALUMINUM ALLOYS, THE TWO LAYERS OF ALUMINUM ALLOY CONTACTING SAID CORE LAYER BEING OF COMMERCIAL PURITY ALUMINUM, WHILE THE OUTER TWO LAYERS ARE OF AN ALUMINUM ALLOY OF HIGHER STRENGTH THAN COMMERCIAL PURITY ALUMINUM, SAID CORE LAYER CONSISTING ESSENTIALLY OF ZINC AND FROM ABOUT 0.1 TO 30% ALUMINUM AND CONSTITUTING NOT OVER 2% OF THE TOTAL THICKNESS OF THE LAMINATED SHEET.
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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) | 1968-01-26 | 1968-07-27 | 1969-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-01-26 | 1972-07-27 | 1973-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-01-26 | 1976-07-27 | 1977-01-26 | $7700.00 | Window Closed / Lapsed |