US2851418A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lubricating greases thickened with 3-nu-aryl-carbamyl-2-hydroxy-1-naphthyleneazoarenes
Assignee: Texaco Inc
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Filing: 1956-12-28
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Granted: 1958-09-09
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Expires: 1976-12-28
Abstract
No abstract record available.
Inventors
- 👤 Joseph F Lyons
- 👤 Norman R Odell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:12
CPC Classifications
C; C10; C10M; C10M5/00; C10M2201/00; C10M2201/06; C10M2201/062; C10M2201/08; C10M2201/081; C10M2201/082; C10M2201/084; C10M2201/10; C10M2201/102; C10M2201/103; C10M2201/105; C10M2207/00; C10M2207/28; C10M2207/30; C10M2207/302; C10M2207/304; C10M2209/00; C10M2209/10; C10M2209/11; C10M2209/111; C10M2209/112; C10M2215/00; C10M2215/02; C10M2215/06; C10M2215/064; C10M2215/066; C10M2215/18; C10M2215/182; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/041; C10M2229/00; C10M2229/04; C10M2229/041; C10M2229/042; C10M2229/043; C10M2229/044; C10N; C10N2050/00; C10N2050/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
38 words
A LUBRICATING GREASE CONSISTING ESSENTIALLY OF A LUBRICATING OIL THICKENED TO A GREASE CONSISTENCY WITH A COMPOUND SELECTED FROM THE CLASS CONSISTING OF 3-N-ARYLCARBAMYL-2-HYDROXY-1-NAPHTHALENEAZOARENES AND SUBSTITUTED DERIVATIVES THEREOF WHICH ARE FREE FROM OIL-SOLUBILIZING GROUPS AND FROM SALT-FORMING GROUPS.
Claim 2
Dependent Claim
38 words
A LUBRICATING GREASE CONSISTING ESSENTIALLY OF A LUBRICATING OIL THICKENED TO A GREASE CONSISTENCY WITH A COMPOUND SELECTED FROM THE CLASS CONSISTING OF 3-N-ARYLCARBAMYL-2-HYDROXY-1-NAPHTHALENEAZOARENES AND SUBSTITUTED DERIVATIVES THEREOF WHICH ARE FREE FROM OIL-SOLUBILIZING GROUPS AND FROM SALT-FORMING GROUPS.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-09-08 | 1962-03-10 | 1962-09-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-08 | 1966-03-10 | 1966-09-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-08 | 1970-03-10 | 1970-09-09 | $7700.00 | Window Closed / Lapsed |