US3741753A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for adding manganese alloying member to steel
Assignee: Timken Co
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Filing: 1971-07-26
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Granted: 1973-06-26
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Expires: 1991-07-26
Abstract
Abstract A METHOD FOR ADDING A MANGANESE-BASE ALLOYING AGENT TO FERROUS LIQUED METAL BY INSERTING INTO THE LIQUID METAL A WIRE-LIKE CONFIGURATION HAVING A COMPOSITION, BY WEIGHT, OF FROM ABOUT 65% TO ABOUT 85% MANGANESE, FROM ABOUT 10% TO ABOUT 35% NICKEL, AND WITH OR WITHOUT A BLANCE OF UP TO ABOUT 15% IRON AND/OR UP TO ABOUT 0.5% ALUMINUM WITH INCIDENTAL IMPURITIES.
Inventors
- 👤 H Walz
- 👤 R Bloom
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 11:40
CPC Classifications
C; C22; C22C; C22C35/00; C22C35/005; C22C28/00
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) | 1976-06-25 | 1976-12-25 | 1977-06-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-06-25 | 1980-12-25 | 1981-06-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-06-25 | 1984-12-25 | 1985-06-26 | $7700.00 | Window Closed / Lapsed |