US2129596A
Expired / Lapsed
US
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Treatment of solids
Assignee: Imperial Chemical Industries Ltd
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Filing: 1934-05-04
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Granted: 1938-09-06
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Expires: 1954-05-04
Abstract
No abstract record available.
Inventors
- 👤 Waterman Hein Israel
- 👤 Cornelus Van Vlodrop
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 03:16
CPC Classifications
C; C09; C09B; C09B61/00; A; A23; A23F; A23F5/00; A23F5/20; B; B01; B01D; B01D1/00; B01D1/0011; B01D1/0017; B01D3/00; B01D3/10; B01D7/00; C07; C07D; C07D453/00; C07D453/02; C07D453/04; Y; Y10; Y10S; Y10S159/00; Y10S159/01; Y10S203/00; Y10S203/02; Y10S203/11
Claims Analysis
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1941-09-05 | 1942-03-07 | 1942-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1945-09-05 | 1946-03-07 | 1946-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1949-09-05 | 1950-03-07 | 1950-09-06 | $7700.00 | Window Closed / Lapsed |