US3290936A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metal processing
Assignee: Metaltronics Inc
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Filing: 1962-09-05
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Granted: 1966-12-13
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Expires: 1982-09-05
Abstract
No abstract record available.
Inventors
- 👤 Richard F Harvey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:56
CPC Classifications
C; C21; C21D; C21D8/00; Y; Y10; Y10S; Y10S72/00; Y10S72/70
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
125 words
THE PROCESS OF CROSS ROLLING HIGH ALLOY METAL BARSTOCK TO MINIMIZE SEGREGATION AND DIRECTIONAL EFFECTS THEREIN WHICH CONSISTS IN FIRST COGGING A CAST INGOT TO A FIRST STAGE BILLET, SAID FIRST STAGE BILLET HAVING A DIRECTION OF WORKING ALONG THE LENGTH OF THE BILLET; AND THEN CUTTING A SMALLER, CROSS GRAINED, SECOND STAGE BILLET FROM THE FIRST STAGE BILLET, SAID SECOND STAGE BILLET BEING CUT SO THAT THE DIRECTIONAL PROPERTIES OR GAIN IS ACROSS THE LENGTH OF THE SAID SECOND STAGE BILLET; AND FINALLY REDUCING THE SECOND STAGE BILLET TO EXTEND ITS LENGTH AND TO REDUCE IT TO A BAR WHEREIN THE CROSS SECTIONAL AREA REDUCTION FROM INGOT TO BAR IS LESS THAN ABOUT 60 TO 1 AND IS GREATER THAN ABOUT 5 TO 1.
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) | 1969-12-12 | 1970-06-13 | 1970-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-12 | 1974-06-13 | 1974-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-12 | 1978-06-13 | 1978-12-13 | $7700.00 | Window Closed / Lapsed |