US2636858A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mineral oil additive
Assignee: Standard Oil Development Co
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Filing: 1951-06-07
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Granted: 1953-04-28
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Expires: 1971-06-07
Abstract
No abstract record available.
Inventors
- 👤 Robert H Jones
- 👤 Leonard E Moody
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:25
CPC Classifications
C; C10; C10M; C10M159/00; C10M159/12; C10M159/123; C10M2205/00; C10M2205/20; C10M2207/00; C10M2207/02; C10M2207/021; C10M2207/023; C10M2207/027; C10M2207/10; C10M2207/12; C10M2207/125; C10M2207/129; C10M2207/40; C10M2207/404; C10M2209/00; C10M2209/02; C10M2209/08; C10M2209/082; C10M2219/00; C10M2219/02; C10M2219/024; C10M2219/04; C10M2219/044; C10M2219/06; C10M2219/062; C10M2219/066; C10M2219/068; C10M2219/08; C10M2219/082; C10M2219/087; C10M2219/088; C10M2219/089; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/042; C10M2223/045; C10M2223/12; C10M2225/00; C10M2225/04; C10M2225/041; C10N; C10N2010/00; C10N2010/04; C10N2030/00; C10N2030/12; C10N2040/00; C10N2040/04; C10N2040/042; C10N2040/044; C10N2040/046; C10N2040/08; C10N2040/135; C10N2040/14; C10N2040/16; C10N2040/17; C10N2040/20; C10N2040/22; C10N2050/00; C10N2050/10; C10N2070/00; C10N2070/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
48 words
A MINERAL OIL CONTAINING ABOUT 0.1 TO ABOUT 20% BY WEIGHT OF AN ADDITIVE CONSISTING OF (A) A PRODUCT OBTAINED BY REACTING A PHOSPHORUS SULFIDE WITH A HYDROCARBON AND NEUTRALIZING THE ACIDIC REACTION PRODUCT THUS FORMED WITH A NITROGEN BASE, AND (B) A ZINC DITHIOCARBAMATE OF THE FORMULA
Claim 2
Dependent Claim
48 words
A MINERAL OIL CONTAINING ABOUT 0.1 TO ABOUT 20% BY WEIGHT OF AN ADDITIVE CONSISTING OF (A) A PRODUCT OBTAINED BY REACTING A PHOSPHORUS SULFIDE WITH A HYDROCARBON AND NEUTRALIZING THE ACIDIC REACTION PRODUCT THUS FORMED WITH A NITROGEN BASE, AND (B) A ZINC DITHIOCARBAMATE OF THE FORMULA
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) | 1956-04-27 | 1956-10-27 | 1957-04-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-04-27 | 1960-10-27 | 1961-04-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-04-27 | 1964-10-27 | 1965-04-28 | $7700.00 | Window Closed / Lapsed |