US2050219A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the production of butyl alcohol by fermentation
Assignee: Commercial Solvents Corp
•
Filing: 1934-03-08
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Granted: 1936-08-04
•
Expires: 1954-03-08
Abstract
No abstract record available.
Inventors
- 👤 Cornelius F Arzberger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 06:25
CPC Classifications
C; C12; C12P; C12P7/00; C12P7/24; C12P7/26; C12P7/28; Y; Y10; Y10S; Y10S435/00; Y10S435/8215; Y10S435/822; Y10S435/842
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) | 1939-08-04 | 1940-02-03 | 1940-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1943-08-04 | 1944-02-03 | 1944-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1947-08-04 | 1948-02-03 | 1948-08-04 | $7700.00 | Window Closed / Lapsed |