US3049035A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for the reduction of metals or alloys
Assignee: Imperial Chemical Industries Ltd
•
Filing: 1958-11-12
•
Granted: 1962-08-14
•
Expires: 1978-11-12
Abstract
No abstract record available.
Inventors
- 👤 Hirst Stanley
- 👤 Aston William Charles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 16:42
CPC Classifications
B; B21; B21J; B21J7/00; B21J7/02; B21J7/18; B21C; B21C1/00; B21C1/003; B21C37/00; B21C37/02; B21J9/00; B21J9/10; B21J9/12; B21K; B21K27/00; B21K27/02; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18056; Y10T74/18344; Y10T74/21; Y10T74/2142; Y10T74/2154; Y10T74/2156; Y10T74/2157
Claims Analysis
Total Claims: 0
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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) | 1965-08-13 | 1966-02-12 | 1966-08-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-08-13 | 1970-02-12 | 1970-08-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-08-13 | 1974-02-12 | 1974-08-14 | $7700.00 | Window Closed / Lapsed |