US3791975A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Biodegradable lubricants
Assignee: Mobil Oil AS
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Filing: 1971-06-10
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Granted: 1974-02-12
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Expires: 1991-06-10
Abstract
Abstract BIODEGRADABLE WATER-IN-OIL EMULSION LUBRICANTS ARE PROVIDED, COMPRISING, BY WEIGHT, A MAJOR AMOUNT OF WATER DISPERSED IN A CONTINUOUSLY PHASE COMPRISING A BIODEGRADABLE COMPOUND OF THE GENERAL FORMULA: RNX, IS WHICH: R IS A STRAIGHT-CHAIN ALKYL GROUP HAVING FROM 1 TO 18 CARBON ATOMS; X IS A STRAIGHT-CHAIN ESTER OF A FATTY ORGANIC ACID HAVING FROM 1 TO 20 CARBON ATOMS OR BENZENE; AND N IS 1 OR 2.
Inventors
- 👤 N Halkias
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 08:58
CPC Classifications
C; C10; C10M; C10M173/00; C10M173/02; C10M2201/00; C10M2201/02; C10M2203/00; C10M2203/06; C10M2205/00; C10M2205/02; C10M2205/026; C10M2207/00; C10M2207/02; C10M2207/021; C10M2207/022; C10M2207/28; C10M2207/281; C10M2207/282; C10M2207/283; C10M2207/286; C10M2207/34; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/042; C10M2215/24; C10M2215/26; C10M2217/00; C10M2217/04; C10M2217/046; C10M2217/06; C10M2219/00; C10M2219/04; C10M2219/044; C10N; C10N2010/00; C10N2010/04; C10N2020/00; C10N2020/01; C10N2040/00; C10N2040/08; C10N2050/00; C10N2050/01
Claims Analysis
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-02-11 | 1977-08-13 | 1978-02-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-02-11 | 1981-08-13 | 1982-02-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-02-11 | 1985-08-13 | 1986-02-12 | $7700.00 | Window Closed / Lapsed |