Patent USRE27930E successfully refreshed from Google Patents.
USRE27930E
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vacuum vapor deposition with control of flevation of metal melt
Assignee: —
•
Filing: 1972-01-31
•
Granted: 1974-02-26
•
Expires: 1992-01-31
Abstract
Abstract IN THE PROCESS FOR FORMING PROTECTIVE COATINGS ON METAL SUBSTRATE, PARTICULARLY THE NICKEL-BASE AND COBALTBASE SUPERALLOYS, BY MELTING A COATING MATERIAL TO CAUSE VAPORIZATION THEREOF, A MONOCHROMATIC LIGHT BEAM IS UTILIZED IN SENSING AND CONTROLLING DISPLACEMENT OF THE SURFACE ELEVATION OF THE MELT.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 09:39
CPC Classifications
C; C23; C23C; C23C14/00; C23C14/22; C23C14/24; C23C14/246
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) | 1977-02-25 | 1977-08-27 | 1978-02-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-02-25 | 1981-08-27 | 1982-02-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-02-25 | 1985-08-27 | 1986-02-26 | $7700.00 | Window Closed / Lapsed |