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US4163071A
Expired / Lapsed
US
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Method for forming hard wear-resistant coatings
Assignee: Praxair ST Technology Inc
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Filing: 1977-07-05
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Granted: 1979-07-31
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Expires: 1997-07-05
Abstract
Abstract A hard wear-resistant coating for a metallic substrate which is achieved by preheating the substrate to a temperature in the range of from 350 DEG C. to 1000 DEG C. and depositing the coating material with the plasma or detonation-gun (D-gun) process while maintaining the substrate within the 350 DEG to 1000 DEG temperature range to form a fine dispersion of carbide particles in the coating.
Inventors
- 👤 Robert C Tucker Jr
- 👤 Merle H Weatherly
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 14:25
CPC Classifications
C; C23; C23C; C23C4/00; C23C4/04; C23C4/06
Claims Analysis
Total Claims: 0
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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) | 1982-07-30 | 1983-01-29 | 1983-07-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-07-30 | 1987-01-29 | 1987-07-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-07-30 | 1991-01-29 | 1991-07-31 | $7700.00 | Window Closed / Lapsed |