Patent US2921902A successfully refreshed from Google Patents.
US2921902A
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Lubricating composition containing a synergistic extreme pressure additive
Assignee: Texaco Inc
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Filing: 1957-06-03
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Granted: 1960-01-19
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Expires: 1977-06-03
Abstract
No abstract record available.
Inventors
- 👤 Harold J Watson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:17
CPC Classifications
C; C10; C10M; C10M1/00; C10M1/08; C10M2207/00; C10M2207/02; C10M2207/023; C10M2207/026; C10M2207/04; C10M2207/042; C10M2207/10; C10M2207/12; C10M2207/121; C10M2207/123; C10M2207/129; C10M2207/22; C10M2211/00; C10M2211/08; C10M2215/00; C10M2215/02; C10M2215/06; C10M2215/064; C10M2215/065; C10M2215/066; C10M2219/00; C10M2219/06; C10M2219/062; C10M2219/066; C10M2219/068; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/042; C10M2229/00; C10M2229/02; C10M2229/04; C10M2229/041; C10M2229/043; C10M2229/044; C10M2229/05; C10N; C10N2010/00; C10N2010/04; C10N2040/00; C10N2040/135; C10N2070/00; C10N2070/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
53 words
A LUBRICATING COMPOSITION COMPRISING A MINERAL LUBRICATING OIL AS THE MAJOR COMPONENT, 0.5 TO 5.0 WEIGHT PERCENT CHLORINATED PARAFFIN WAX AND 0.002 TO 0.1 WEIGHT PERCENT METAL DIALKYL DITHIOCARBAMATE IN WHICH SAID METAL IS SELECTED FROM THE GROUP CONSISTING OF ZINC AND CADMIUM AND SAID ALKYL GROUP CONTAINS 2 TO 14 CARBON ATOMS.
Claim 2
Dependent Claim
53 words
A LUBRICATING COMPOSITION COMPRISING A MINERAL LUBRICATING OIL AS THE MAJOR COMPONENT, 0.5 TO 5.0 WEIGHT PERCENT CHLORINATED PARAFFIN WAX AND 0.002 TO 0.1 WEIGHT PERCENT METAL DIALKYL DITHIOCARBAMATE IN WHICH SAID METAL IS SELECTED FROM THE GROUP CONSISTING OF ZINC AND CADMIUM AND SAID ALKYL GROUP CONTAINS 2 TO 14 CARBON ATOMS.
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) | 1963-01-18 | 1963-07-20 | 1964-01-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-01-18 | 1967-07-20 | 1968-01-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-01-18 | 1971-07-20 | 1972-01-19 | $7700.00 | Window Closed / Lapsed |