US2586818A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Progressive classifying or treating solids in a fluidized bed thereof
Assignee: Individual
•
Filing: 1947-08-21
•
Granted: 1952-02-26
•
Expires: 1967-08-21
Abstract
No abstract record available.
Inventors
- 👤 Harms Viggo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:38
CPC Classifications
C; C05; C05B; C05B19/00; B; B01; B01J; B01J2/00; B01J2/16; B01J8/00; B01J8/18; B01J8/24; B01J8/26; B01J8/36; B03; B03B; B03B4/00; B03B4/06; C05G; C05G5/00; C05G5/10; C05G5/12; F; F26; F26B; F26B3/00; F26B3/02; F26B3/06; F26B3/08; Y; Y10; Y10S; Y10S118/00; Y10S118/05; Y10S159/00; Y10S159/03; Y10S264/00; Y10S264/50; Y10S264/51; Y10S425/00; Y10S425/02
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) | 1955-02-25 | 1955-08-27 | 1956-02-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-02-25 | 1959-08-27 | 1960-02-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-02-25 | 1963-08-27 | 1964-02-26 | $7700.00 | Window Closed / Lapsed |