US2903495A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Arc melting furnace and method of melting high melting point metallic material
Assignee: Imperial Chemical Industries Ltd
•
Filing: 1956-08-17
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Granted: 1959-09-08
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Expires: 1976-08-17
Abstract
No abstract record available.
Inventors
- 👤 Dickson Ronald
- 👤 Swainson Eric
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 02:11
CPC Classifications
C; C22; C22B; C22B34/00; C22B34/10; C22B34/14; C22B34/12; C22B34/1295; Y; Y10; Y10S; Y10S266/00; Y10S266/905
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-09-07 | 1963-03-09 | 1963-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-09-07 | 1967-03-09 | 1967-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-09-07 | 1971-03-09 | 1971-09-08 | $7700.00 | Window Closed / Lapsed |