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Patent US3234056A successfully refreshed from Google Patents.
US3234056A
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US
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Method for producing alloy steel wool
Assignee: WMF Group GmbH
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Filing: 1962-10-15
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Granted: 1966-02-08
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Expires: 1982-10-15
Abstract
No abstract record available.
Inventors
- 👤 Kraft Paul
- 👤 Schlomer Josef
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 15:51
CPC Classifications
B; B22; B22F; B22F3/00; B22F3/002; Y; Y10; Y10T; Y10T428/00; Y10T428/12; Y10T428/12424
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
92 words
A METHOD OF PRODUCING METAL ALLOYS, COMPRISING APPLYING TO A MILTIPLICITY OF STEEL FIBERS ORIENTED AT RANDOM AS A BODY OF STEEL WOOL A COATING OF A METAL SELECTED FROM THE CLASS CONSISTING OF CHROMIUM, ALUMINUM AND NICKEL WITH THE SURFACE OF THE FIBERS COATED WITH THE COATING METAL THROUGHOUT THE BODY OF STEEL WOOL, AND MAINTAINING THE BODY OF STEEL WOOL AT ELEVATED TEMPERATURE TO DIFFUSE THE COATING METAL THROUGH THE THICKNESS OF EACH FIBER UNTIL THE CONCENTRATION OF THE COATING METAL IS SUBSTANTIALLY UNIFORM THROUGHOUT THE THICKNESS OF EACH FIBER.
Claim 2
Independent Claim
92 words
A METHOD OF PRODUCING METAL ALLOYS, COMPRISING APPLYING TO A MILTIPLICITY OF STEEL FIBERS ORIENTED AT RANDOM AS A BODY OF STEEL WOOL A COATING OF A METAL SELECTED FROM THE CLASS CONSISTING OF CHROMIUM, ALUMINUM AND NICKEL WITH THE SURFACE OF THE FIBERS COATED WITH THE COATING METAL THROUGHOUT THE BODY OF STEEL WOOL, AND MAINTAINING THE BODY OF STEEL WOOL AT ELEVATED TEMPERATURE TO DIFFUSE THE COATING METAL THROUGH THE THICKNESS OF EACH FIBER UNTIL THE CONCENTRATION OF THE COATING METAL IS SUBSTANTIALLY UNIFORM THROUGHOUT THE THICKNESS OF EACH FIBER.
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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) | 1969-02-07 | 1969-08-09 | 1970-02-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-07 | 1973-08-09 | 1974-02-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-07 | 1977-08-09 | 1978-02-08 | $7700.00 | Window Closed / Lapsed |