Patent US2597472A successfully refreshed from Google Patents.
Patent US2206151A successfully refreshed from Google Patents.
US2206151A
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Process of sulphurizing oils
Assignee: Mid Continent Petroleum Corp
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Filing: 1936-01-15
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Granted: 1940-07-02
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Expires: 1956-01-15
Abstract
No abstract record available.
Inventors
- 👤 Harry T Bennett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:32
CPC Classifications
C; C10; C10M; C10M101/00; C10M101/02; C10M101/04; C10M2207/00; C10M2207/40; C10M2207/404; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/06; C10M2215/10; C10M2215/22; C10M2215/221; C10M2215/225; C10M2215/226; C10M2215/24; C10M2215/26; C10M2215/30; C10M2217/00; C10M2217/04; C10M2217/046; C10M2217/06; C10M2219/00; C10M2219/02; C10M2219/024; C10M2219/06; C10M2219/062; C10M2219/064; C10M2219/066; C10M2219/10; C10M2219/102; C10M2219/104; C10M2219/106; C10N; C10N2010/00; C10N2010/04; C10N2010/08; C10N2040/00; C10N2040/20; C10N2040/22; C10N2070/00; C10N2070/02
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) | 1943-07-02 | 1944-01-01 | 1944-07-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1947-07-02 | 1948-01-01 | 1948-07-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1951-07-02 | 1952-01-01 | 1952-07-02 | $7700.00 | Window Closed / Lapsed |