US3554945A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lubricating compositions containing alkylated polyhydroxy aromatic compounds
Assignee: Mobil Oil AS
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Filing: 1969-07-02
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Granted: 1971-01-12
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Expires: 1989-07-02
Abstract
Abstract THE PRESENCE OF ALKYLATED POLYHDROXY BENZENOID COMHAVING FROM 1 TO 4 ALKYL GROUPS OF 6 TO 100 CARBON ATOMS, PREFERABLY 6 TO 30 CARBON ATOMS, AND AT LEAST 2 HYDROXY GRUOPS, SUCH COMPOUNDS BEING PREPARED FROM THE APPROPRIATE POLYHYDROXY COMPOUND AND OLEFIN IN THE PRESENCE OF A BORON TRIFLUORIDE CATALYST, PROVIDE HIGH TEMPERATURE OXIDATION PROTECTION TO LUBRICATING OILS AND OTHER ORGANIC MATERIALS.
Inventors
- 👤 Harry J Andress Jr
- 👤 Albert L Williams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 10:19
CPC Classifications
C; C10; C10M; C10M129/00; C10M129/02; C10M129/04; C10M129/10; C10M129/14; C10M2205/00; C10M2205/02; C10M2205/024; C10M2205/026; C10M2207/00; C10M2207/02; C10M2207/023; C10M2207/024; C10M2207/025; C10M2207/28; C10M2207/281; C10M2207/282; C10M2207/283; C10M2207/286; C10M2207/34; C10M2209/00; C10M2209/10; C10M2209/103; C10M2209/105; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/042; C10M2229/00; C10M2229/04; C10M2229/041; C10N; C10N2040/00; C10N2040/08
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) | 1974-01-11 | 1974-07-13 | 1975-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-11 | 1978-07-13 | 1979-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-11 | 1982-07-13 | 1983-01-12 | $7700.00 | Window Closed / Lapsed |