US2562065A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Carburizing salt bath
Assignee: Wyeth Holdings LLC
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Filing: 1950-11-29
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Granted: 1951-07-24
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Expires: 1970-11-29
Abstract
No abstract record available.
Inventors
- 👤 Edna L Sawyer
- 👤 Northrup W Marr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:39
CPC Classifications
C; C23; C23C; C23C8/00; C23C8/40; C23C8/42; C23C8/44; C23C8/46
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
54 words
A MIXTURE ADAPTED UPON FUSION FOR THE CARBURIZING OF FERROUS METAL ARTICLES WHICH CONSISTS ESSENTIALLY OF ALKALI METAL CHLORIDE ABOUT 20-50 PARTS, CYANOGEN COMPOUND ABOUT 15-35 PARTS, ANHYDROUS ALKALI METAL CARBONATE ABOUT 25-45 PARTS, ALKALI METAL SILICATE EQUIVALENT TO ABOUT 0.5-5.5 PARTS OF SILICA, AND GRAPHITE ABOUT 0.1-1.0 PART, THE PARTS BEING BY WEIGHT.
Claim 2
Dependent Claim
54 words
A MIXTURE ADAPTED UPON FUSION FOR THE CARBURIZING OF FERROUS METAL ARTICLES WHICH CONSISTS ESSENTIALLY OF ALKALI METAL CHLORIDE ABOUT 20-50 PARTS, CYANOGEN COMPOUND ABOUT 15-35 PARTS, ANHYDROUS ALKALI METAL CARBONATE ABOUT 25-45 PARTS, ALKALI METAL SILICATE EQUIVALENT TO ABOUT 0.5-5.5 PARTS OF SILICA, AND GRAPHITE ABOUT 0.1-1.0 PART, THE PARTS BEING BY WEIGHT.
References Cited (Backward Citations)
US2541085A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-07-23 | 1955-01-22 | 1955-07-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-07-23 | 1959-01-22 | 1959-07-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-07-23 | 1963-01-22 | 1963-07-24 | $7700.00 | Window Closed / Lapsed |