Patent US3531318A successfully refreshed from Google Patents.
US3531318A
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US
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Method of coating a crucible with sodium chloride
Assignee: RMI Co
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Filing: 1967-09-26
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Granted: 1970-09-29
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Expires: 1987-09-26
Abstract
No abstract record available.
Inventors
- 👤 Robert A Booth
- 👤 Richard M Scriver
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:41
CPC Classifications
B; B22; B22C; B22C3/00; B22C23/00; B22C23/02; F; F27; F27B; F27B14/00; F27B14/08; F27B14/10; F27D; F27D1/00; F27D1/16; F27D1/1678; F27D1/1684; F27B2014/104; F27D3/00; F27D2003/0085; F27D2003/0087; F27D99/00; F27D99/0001; F27D2099/006; F27M; F27M2003/00; F27M2003/02; F27M2003/025; Y; Y10; Y10S; Y10S266/00; Y10S266/905
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) | 1973-09-28 | 1974-03-30 | 1974-09-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-09-28 | 1978-03-30 | 1978-09-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-09-28 | 1982-03-30 | 1982-09-29 | $7700.00 | Window Closed / Lapsed |