Patent US2198275A successfully refreshed from Google Patents.
US2198275A
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Mineral oil composition and improving agent therefor
Assignee: ExxonMobil Oil Corp
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Filing: 1939-10-18
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Granted: 1940-04-23
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Expires: 1959-10-18
Abstract
No abstract record available.
Inventors
- 👤 Orland M Reiff
- 👤 Ferdinand P Otto
- 👤 John J Giammaria
- 👤 Edward A Oberright
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 09:51
CPC Classifications
C; C10; C10M; C10M1/00; C10M1/08; C10M2207/00; C10M2207/10; C10M2207/12; C10M2207/121; C10M2207/123; C10M2207/124; C10M2207/125; C10M2207/128; C10M2207/129; C10M2207/22; C10M2207/24; C10M2207/28; C10M2207/284; C10M2207/285; C10M2211/00; C10M2211/04; C10M2211/044; C10M2211/06; C10M2215/00; C10M2215/02; C10M2215/06; C10M2215/062; C10M2215/068; C10M2215/20; C10M2215/202; C10N; C10N2010/00; C10N2010/02; C10N2010/04; C10N2010/06; C10N2010/08; C10N2010/10; C10N2010/12; C10N2010/14; C10N2010/16; C10N2040/00; C10N2040/04; C10N2040/042; C10N2040/044; C10N2040/046; C10N2040/14; C10N2040/16; C10N2040/17
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) | 1943-04-23 | 1943-10-23 | 1944-04-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1947-04-23 | 1947-10-23 | 1948-04-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1951-04-23 | 1951-10-23 | 1952-04-23 | $7700.00 | Window Closed / Lapsed |