US1676724A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Art of distillation
Assignee: Standard Oil Development Co
•
Filing: 1923-03-06
•
Granted: 1928-07-10
•
Expires: 1943-03-06
Abstract
No abstract record available.
Inventors
- 👤 Arman E Becker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 23:19
CPC Classifications
C; C10; C10G; C10G29/00; C10G29/02; B; B01; B01D; B01D3/00; B01D3/02; C10G29/04
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) | 1931-07-10 | 1932-01-09 | 1932-07-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1935-07-10 | 1936-01-09 | 1936-07-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1939-07-10 | 1940-01-09 | 1940-07-10 | $7700.00 | Window Closed / Lapsed |