US2782018A
Expired / Lapsed
US
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Method of heat processing finely divided materials and furnace therefor
Assignee: Combined Metals Reduction Co
•
Filing: 1950-06-05
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Granted: 1957-02-19
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Expires: 1970-06-05
Abstract
No abstract record available.
Inventors
- 👤 James H Bradford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:54
CPC Classifications
F; F27; F27B; F27B1/00; F27B1/005; B; B01; B01J; B01J8/00; B01J8/18; B01J8/1836; B01J2208/00; B01J2208/00008; B01J2208/00017; B01J2208/00106; B01J2208/00168; B01J2208/00212; B01J2208/00477; B01J2208/00495; B01J2208/00504; B01J2208/0053; Y; Y10; Y10S; Y10S261/00; Y10S261/09
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) | 1960-02-19 | 1960-08-20 | 1961-02-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-02-19 | 1964-08-20 | 1965-02-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-02-19 | 1968-08-20 | 1969-02-19 | $7700.00 | Window Closed / Lapsed |