US2235056A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the recovery of glycerol from still residues from fermentation processes
Assignee: Imperial Chemical Industries Ltd
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Filing: 1939-03-04
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Granted: 1941-03-18
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Expires: 1959-03-04
Abstract
No abstract record available.
Inventors
- 👤 Walmesley Robert Alan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 18:07
CPC Classifications
C; C11; C11D; C11D19/00; C12; C12P; C12P7/00; C12P7/02; C12P7/04; C12P7/18; C12P7/20
Claims Analysis
Total Claims: 0
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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) | 1944-03-17 | 1944-09-16 | 1945-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1948-03-17 | 1948-09-16 | 1949-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1952-03-17 | 1952-09-16 | 1953-03-18 | $7700.00 | Window Closed / Lapsed |