US3177073A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High strength aluminum alloy for pellet extrusion and product
Assignee: Dow Chemical Co
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Filing: 1962-03-26
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Granted: 1965-04-06
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Expires: 1982-03-26
Abstract
No abstract record available.
Inventors
- 👤 George S Foerster
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:17
CPC Classifications
C; C22; C22C; C22C21/00; C22C21/06; C22C21/08; C22C21/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
101 words
AN ALUMINUM ALLOY CONSISTING ESSENTIALLY OF FROM ABOUT 0.5 TO ABOUT 2.0 WEIGHT PERCENT MAGNESIUM, FROM ABOUT 0.5 TO ABOUT 10 WEIGHT PERCENT SILICON, AN ADDITIVE METAL, BALANCE ALUMINUM, SAID ADDITIVE METAL BEING A MEMBER SELECTED FROM THE GROUP CONSISTING OF CHROMIUM AND IRON AND THE CONCENTRATION IN WEIGHT PERCENT OF SAID ADDITIVE METAL IN SAID ALLOY BEING FROM ABOUT 1.5 TO ABOUT 3 FOR CHROMIUM AND FROM ABOUT 3 TO ABOUT 6 FOR IRON, THE WEIGHT PERCENT OF SILICON IN SAID ALLOY BEING PREDETERMINED WITHIN THE RANGE OF FROM ABOUT 0.5 TO ABOUT 10 PERCENT IN ACCORDANCE WITH THE EQUATION
Claim 2
Dependent Claim
101 words
AN ALUMINUM ALLOY CONSISTING ESSENTIALLY OF FROM ABOUT 0.5 TO ABOUT 2.0 WEIGHT PERCENT MAGNESIUM, FROM ABOUT 0.5 TO ABOUT 10 WEIGHT PERCENT SILICON, AN ADDITIVE METAL, BALANCE ALUMINUM, SAID ADDITIVE METAL BEING A MEMBER SELECTED FROM THE GROUP CONSISTING OF CHROMIUM AND IRON AND THE CONCENTRATION IN WEIGHT PERCENT OF SAID ADDITIVE METAL IN SAID ALLOY BEING FROM ABOUT 1.5 TO ABOUT 3 FOR CHROMIUM AND FROM ABOUT 3 TO ABOUT 6 FOR IRON, THE WEIGHT PERCENT OF SILICON IN SAID ALLOY BEING PREDETERMINED WITHIN THE RANGE OF FROM ABOUT 0.5 TO ABOUT 10 PERCENT IN ACCORDANCE WITH THE EQUATION
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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) | 1968-04-05 | 1968-10-05 | 1969-04-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-04-05 | 1972-10-05 | 1973-04-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-04-05 | 1976-10-05 | 1977-04-06 | $7700.00 | Window Closed / Lapsed |