US3703405A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vapor deposition of rhenium and rhenium-tungsten alloy coatings
Assignee: United States Atomic Energy Commission
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Filing: 1970-10-27
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Granted: 1972-11-21
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Expires: 1990-10-27
Abstract
Abstract A PROCESS FOR COATING A SUBSTRATE WITH RHENIUM. A MIXTURE OF GASEOUS HYDROGEN AND A RHENIUM OXYCHLORIDE VAPORIZED IN AN INERT GAS IS PASSED OVER THE SUBSTRATE, WHICH IS HEATED TOA TEMPERATURE EFFECTING REDUCTION OF THE OXYCHLORIDE AND DEPOSITION OF RHENIUM METAL ON THE SUBSTRATE. A RHENIUM-TUNGSTEN ALLOY COATING CAN BE DEPOSITED BY INCORPORATING TUNGSTEN HEXAFLUORIDE IN THE GAS MIXTURE PASSED OVER THE SUBSTRATE.
Inventors
- 👤 Abner Brenner
- 👤 Harvey J Anderson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:28
CPC Classifications
C; C23; C23C; C23C16/00; C23C16/06; C23C16/08; C23C16/14; Y; Y10; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12771; Y10T428/12806; Y10T428/12826; Y10T428/1284; Y10T428/12861; Y10T428/12951
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) | 1975-11-21 | 1976-05-22 | 1976-11-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-11-21 | 1980-05-22 | 1980-11-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-11-21 | 1984-05-22 | 1984-11-21 | $7700.00 | Window Closed / Lapsed |