US3340716A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of producing wrought structure
Assignee: Reynolds Metals Co
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Filing: 1964-11-10
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Granted: 1967-09-12
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Expires: 1984-11-10
Abstract
No abstract record available.
Inventors
- 👤 Donald J Funk
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 06:44
CPC Classifications
B; B21; B21B; B21B3/00; B21J; B21J1/00; B21J1/02; B21J1/025; B21J5/00; C; C22; C22F; C22F1/00; C22F1/04; C22F1/057; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/4998; Y10T29/49988; Y10T29/49991
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
93 words
THE METHOD OF PRODUCING WROUGHT ALUMINUM ALLOY PLATE HAVING A THICKNESS OF AT LEAST ABOUT 3 INCHES, COMPRISING THE STEPS OF PROVIDING AN ALUMINUM ALLOY INGOT HAVING A WIDTH GREATER THAN ITS THICKNESS, HOMOGENIZING THE INGOT BY A HEAT TREATMENT, HOT FORGING THE INGOT TO EFFECT A REDUCTION OF AT LEAST 25% IN ITS WIDTH DIMENSION AND FORM A BILLET ALREADY WORKED SUBSTANTIALLY IN THE SHORT TRANSVERSE DIRECTION, AND ROLLING SAID BILLET INTO A PLATE, THE COMBINATION OF SAID FORGING AND ROLLING STEPS PRODUCING A WROUGHT STRUCTURE EXTENDING SUBSTANTIALLY THROUGHOUT THE RESULTANT PLATE.
Claim 2
Independent Claim
93 words
THE METHOD OF PRODUCING WROUGHT ALUMINUM ALLOY PLATE HAVING A THICKNESS OF AT LEAST ABOUT 3 INCHES, COMPRISING THE STEPS OF PROVIDING AN ALUMINUM ALLOY INGOT HAVING A WIDTH GREATER THAN ITS THICKNESS, HOMOGENIZING THE INGOT BY A HEAT TREATMENT, HOT FORGING THE INGOT TO EFFECT A REDUCTION OF AT LEAST 25% IN ITS WIDTH DIMENSION AND FORM A BILLET ALREADY WORKED SUBSTANTIALLY IN THE SHORT TRANSVERSE DIRECTION, AND ROLLING SAID BILLET INTO A PLATE, THE COMBINATION OF SAID FORGING AND ROLLING STEPS PRODUCING A WROUGHT STRUCTURE EXTENDING SUBSTANTIALLY THROUGHOUT THE RESULTANT PLATE.
References Cited (Backward Citations)
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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) | 1970-09-11 | 1971-03-13 | 1971-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-11 | 1975-03-13 | 1975-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-11 | 1979-03-13 | 1979-09-12 | $7700.00 | Window Closed / Lapsed |