US2090915A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for controlling treatment of hydrocarbon oils
Assignee: Texaco Inc
•
Filing: 1933-11-23
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Granted: 1937-08-24
•
Expires: 1953-11-23
Abstract
No abstract record available.
Inventors
- 👤 Ross C Powell
- 👤 Leslie E Priester
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:20
CPC Classifications
C; C10; C10G; C10G9/00; C10G9/14; C10G9/18; C10G9/20; C10G9/206; C10G7/00; C10G7/12; Y; Y10; Y10S; Y10S73/00; Y10S73/11; Y10T; Y10T137/00; Y10T137/0318; Y10T137/0324; Y10T137/0329; Y10T137/0335
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) | 1940-08-23 | 1941-02-22 | 1941-08-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1944-08-23 | 1945-02-22 | 1945-08-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1948-08-23 | 1949-02-22 | 1949-08-24 | $7700.00 | Window Closed / Lapsed |