US3093459A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for manufacturing highly polishable sheets of aluminum
Assignee: Aluminium Industrie AG
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Filing: 1959-07-30
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Granted: 1963-06-11
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Expires: 1979-07-30
Abstract
No abstract record available.
Inventors
- 👤 Siebel Gustav
- 👤 Muller Wolfgang
- 👤 Tragner Erich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 16:04
CPC Classifications
B; B23; B23K; B23K20/00; B23K20/22; B23K20/233; B23K20/2336; B32; B32B; B32B15/00; B32B15/01; B32B15/016; C; C22; C22F; C22F1/00; C22F1/04; C22F1/05; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/923; Y10S428/924; Y10S428/925; Y10T; Y10T29/00; Y10T29/49; Y10T29/4998; Y10T29/49982; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12736; Y10T428/12764; Y10T428/12993
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
132 words
A HIGHLY POLISHABLE SHEET COMPOSED ONLY OF ALUMINUM ALLOYS AND HAVING SHEET COMPOSED STRENGTH OF 28 TO 32 KG./MM.2, A TENSIBLE STRENGTH OF 32 TO 36 KG./MM.2, AN ELONGATION OF 20 TO 15 PERCENT AND A BRINELL HARDNESS OF 90 TO 100KG./MM2, WHICH SHEET COMPRISES A BASE OF AN ALLOY CONSISTING ESSENTIALLY OF ALUMINUM WITH 0.3 TO 0.7 PERCENT MAGNESIUM AND 0.3 TO 0.7 PERCENT SILICON, SAID ALUMINUM BEING A COMMERCIAL GRADE ALUMINUM WITH A PURITY OF 99.0 PERCENT TO 99.49 PERCENT, PLATED ON AT LEAST ONE FACE WITH A SUBSTANTIALLY THINNER LAYER OF ON ALLOY CONSISTING ESSENTIALLY OF ALUMINUM WITH 0.3 TO 0.7 PERCENT MAGNESIUM AND 0.3 TO 0.7 PERCENT SILICON, THE LAST MENTIONED ALUMINUM BEING OF A PURITY OF OVER 99.85 PERCENT AND THE LAST MENTIONED ALLIOY BEING FINE GRAINED.
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) | 1966-06-10 | 1966-12-10 | 1967-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-06-10 | 1970-12-10 | 1971-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-06-10 | 1974-12-10 | 1975-06-11 | $7700.00 | Window Closed / Lapsed |