Patent US3738875A successfully refreshed from Google Patents.
US3738875A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stainless steel of improved ductility
Assignee: Sunbeam Oster Co Inc
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Filing: 1971-07-14
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Granted: 1973-06-12
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Expires: 1991-07-14
Abstract
Abstract STAINLESS STEEL OF IMPROVED DUCTILITY AND COLD ROLLABILITY, MORE PARTICULARLY, STAINLESS STEEL WHICH MAY BE COLD ROLLED FROM HOT BAND DIRECTLY TO FINAL GAGE WITHOUT INTERMEDIATE PROCESSING AND ANNEALING. IN ACCORDANCE WITH THE INVENTION, THERE IS PROVIDED A STAINLESS STEEL CONSISTING ESSENTIALLY OF UP TO 0.6% CARBON, 0.2 TO 1.0% MANGANESE, 13 TO 14% CHROMIUM, 0.2 TO 1% SILICON, 0.1 TO 0.3% ALUMINUM, 0.05 TO 0.15% TITANIUM AND THE BALANCE ESSENTIALLY IRON WITH USUAL STEELMAKING RESIDUALS.
Inventors
- 👤 W Kalita
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 20:23
CPC Classifications
C; C21; C21D; C21D8/00; C21D8/02; C22; C22C; C22C38/00; C22C38/18; C22C38/28
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-06-11 | 1976-12-11 | 1977-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-06-11 | 1980-12-11 | 1981-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-06-11 | 1984-12-11 | 1985-06-12 | $7700.00 | Window Closed / Lapsed |