US1908286A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of hydrocarbons
Assignee: IG Farbenindustrie AG
•
Filing: 1929-11-30
•
Granted: 1933-05-09
•
Expires: 1949-11-30
Abstract
No abstract record available.
Inventors
- 👤 Dorrer Eugen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 06:38
CPC Classifications
C; C07; C07C; C07C5/00; C07C5/02; C07C5/10; C07C5/03; C07C5/11; C10; C10G; C10G45/00; C10G45/02; C10G45/04; C07C2527/00; C07C2527/02; C07C2527/04; C07C2527/047; Y; Y10; Y10S; Y10S585/00; Y10S585/929; Y10S585/943
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) | 1936-05-08 | 1936-11-07 | 1937-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1940-05-08 | 1940-11-07 | 1941-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1944-05-08 | 1944-11-07 | 1945-05-09 | $7700.00 | Window Closed / Lapsed |