Patent US2586148A successfully refreshed from Google Patents.
US2586148A
Expired / Lapsed
US
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Means for the removal of air from finely divided material before consolidation under pressure
Assignee: Individual
•
Filing: 1950-01-04
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Granted: 1952-02-19
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Expires: 1970-01-04
Abstract
No abstract record available.
Inventors
- 👤 Clark Fred Harry
- 👤 Lees Charles Arthur
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:36
CPC Classifications
B; B28; B28B; B28B7/00; B28B7/40; B28B7/44; Y; Y10; Y10S; Y10S264/00; Y10S264/78
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) | 1955-02-18 | 1955-08-20 | 1956-02-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-02-18 | 1959-08-20 | 1960-02-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-02-18 | 1963-08-20 | 1964-02-19 | $7700.00 | Window Closed / Lapsed |