US3700505A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coating ferrous base metal articles
Assignee: JEROME J KANTER
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Filing: 1971-01-11
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Granted: 1972-10-24
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Expires: 1991-01-11
Abstract
Abstract IRON, STEEL, AND IRON BASE ALLOYS ARE PROVIDED WITH COATINGS MADE BY FORMING AN ADHERENT OXIDE LAYER ON THE SURFACE, TREATING THE OXIDE LAYER WITH AT LEAST ONE GROUP III METAL, AND THEN OXIDIZING THE GROUP III METAL. THE COATINGS ARE USEFUL FOR PROVIDING CORROSION AND OXIDATION RESISTANCE, PARTICULARLY AT ELEVATED TEMPERATURES. THE COATINGS ALSO ARE USEFUL FOR PROVIDING AN ELECTRICALLY INSULATIVE OR DIELECTRIC LAYER.
Inventors
- 👤 Jerome J Kanter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:16
CPC Classifications
C; C23; C23C; C23C22/00; C23C22/78
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) | 1975-10-24 | 1976-04-24 | 1976-10-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-24 | 1980-04-24 | 1980-10-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-24 | 1984-04-24 | 1984-10-24 | $7700.00 | Window Closed / Lapsed |