US1781167A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chatterless oil and process of producing the same
Assignee: Standard Oil Company of California
•
Filing: 1926-10-12
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Granted: 1930-11-11
•
Expires: 1946-10-12
Abstract
No abstract record available.
Inventors
- 👤 Theodore W Doell
- 👤 Edwin N Klemgard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:52
CPC Classifications
C; C10; C10M; C10M129/00; C10M129/02; C10M129/26; C10M129/28; C10M129/38; C10M129/40; C10M129/44; C10M129/56; C10M129/58; C10M2207/00; C10M2207/10; C10M2207/12; C10M2207/125; C10M2207/126; C10M2207/128; C10M2207/129; C10M2207/16; C10N; C10N2010/00; C10N2010/08; C10N2040/00; C10N2040/04; C10N2040/042; C10N2040/044; C10N2040/046
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) | 1933-11-10 | 1934-05-12 | 1934-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1937-11-10 | 1938-05-12 | 1938-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1941-11-10 | 1942-05-12 | 1942-11-11 | $7700.00 | Window Closed / Lapsed |