US2908644A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lubricating greases thickened with metal salts of sulfonated hydroxy azo compounds
Assignee: Texaco Inc
•
Filing: 1957-11-25
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Granted: 1959-10-13
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Expires: 1977-11-25
Abstract
No abstract record available.
Inventors
- 👤 Norman R Odell
- 👤 Joseph F Lyons
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:23
CPC Classifications
C; C10; C10M; C10M5/00; C10M2201/00; C10M2201/06; C10M2201/062; C10M2201/08; C10M2201/081; C10M2201/082; C10M2201/084; C10M2207/00; C10M2207/28; C10M2207/282; C10M2207/30; C10M2207/302; C10M2207/304; C10M2207/34; C10M2209/00; C10M2209/10; C10M2209/11; C10M2209/111; C10M2209/112; C10M2215/00; C10M2215/02; C10M2215/06; C10M2215/064; C10M2215/066; C10M2219/00; C10M2219/04; C10M2219/044; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/041; C10M2229/00; C10M2229/02; C10M2229/04; C10M2229/05; C10N; C10N2010/00; C10N2010/04; C10N2010/06; C10N2010/08; C10N2010/14; C10N2010/16; C10N2050/00; C10N2050/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
59 words
A LUBRICATING GREASE CONSISTING ESSENTIALLY OF A LUBRICATING OIL THICKENED TO A GREASE CONSISTENCY WITH A HIGH MELTING MONOAZO COMPOUND SELECTED FROM THE CLASS CONSISTING OF POLYVALENT METAL SALTS OF SULFONATED BENZENE-AZO-NAPHTHOL COMPOUNDS AND NAPHTHALENE-AZO NAPHTHOL COMPOUNDS CONTAINING 1-3 POLYVALENT METAL SULFONATE GROUPS, AND SUBSTITUTED DERATIVES OF SUCH COMPOUNDS WHEREIN THE SUBSTITUENT GROUPS ARE SUBSTATIALLY NEUTRAL NON-OIL SOLUBILIZING GROUPS.
Claim 2
Dependent Claim
59 words
A LUBRICATING GREASE CONSISTING ESSENTIALLY OF A LUBRICATING OIL THICKENED TO A GREASE CONSISTENCY WITH A HIGH MELTING MONOAZO COMPOUND SELECTED FROM THE CLASS CONSISTING OF POLYVALENT METAL SALTS OF SULFONATED BENZENE-AZO-NAPHTHOL COMPOUNDS AND NAPHTHALENE-AZO NAPHTHOL COMPOUNDS CONTAINING 1-3 POLYVALENT METAL SULFONATE GROUPS, AND SUBSTITUTED DERATIVES OF SUCH COMPOUNDS WHEREIN THE SUBSTITUENT GROUPS ARE SUBSTATIALLY NEUTRAL NON-OIL SOLUBILIZING GROUPS.
References Cited (Backward Citations)
US2848417A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-10-12 | 1963-04-13 | 1963-10-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-10-12 | 1967-04-13 | 1967-10-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-10-12 | 1971-04-13 | 1971-10-13 | $7700.00 | Window Closed / Lapsed |