US2987476A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for solubilizing inorganic boric acid compounds in fuels and lubricating oils
Assignee: Shell USA Inc
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Filing: 1957-12-19
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Granted: 1961-06-06
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Expires: 1977-12-19
Abstract
No abstract record available.
Inventors
- 👤 Hartley James
- 👤 Lumb Ernest Colin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 13:27
CPC Classifications
C; C10; C10M; C10M125/00; C10M125/26; C01; C01B; C01B35/00; C10L; C10L1/00; C10L1/10; C10L1/12; C10L1/1291; C10M2201/00; C10M2201/02; C10M2201/087; C10M2203/00; C10M2203/02; C10M2203/022; C10M2203/024; C10M2203/04; C10M2203/06; C10M2203/10; C10M2203/102; C10M2203/104; C10M2203/106; C10M2203/108; C10M2207/00; C10M2207/02; C10M2207/021; C10M2207/023; C10M2207/027; C10M2207/04; C10M2207/044; C10M2207/046; C10M2207/08; C10M2207/10; C10M2207/12; C10M2207/125; C10M2207/128; C10M2207/129; C10M2207/14; C10M2207/141; C10M2207/142; C10M2207/144; C10M2207/146; C10M2207/16; C10M2207/24; C10M2207/28; C10M2207/281; C10M2207/282; C10M2207/283; C10M2207/286; C10M2207/287; C10M2207/34; C10M2209/00; C10M2209/10; C10M2209/101; C10M2209/103; C10M2211/00; C10M2211/04; C10M2211/044; C10M2211/06; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/042; C10M2215/044; C10M2215/08; C10M2215/082; C10M2215/12; C10M2215/20; C10M2215/202; C10M2215/22; C10M2215/221; C10M2215/225; C10M2215/226; C10M2215/24; C10M2215/26; C10M2215/28; C10M2215/30; C10M2217/00; C10M2217/04; C10M2217/046; C10M2217/06; C10M2219/00; C10M2219/04; C10M2219/044; C10M2219/046; C10M2219/06; C10M2219/08; C10M2219/082; C10M2219/086; C10M2219/087; C10M2219/089; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/042; C10M2223/045; C10N; C10N2010/00; C10N2010/02; C10N2010/04; C10N2010/06; C10N2010/08; C10N2010/12; C10N2010/14; C10N2010/16; C10N2050/00; C10N2050/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
133 words
A PROCESS FOR PREPARING AN INORGANIC BORIC ACID MATERIAL STABLY DISPERSIBLE IN LIQUID FUELS AND LUBRICANT STOCKS, SAID PROCESS COMPRISING MIXING (A) A SOLUTION OF A LYOPHILIC IONIC SURFACE-ACTIVE AGENT IN A SUBSTANTIALLY NON-POLAR ORGANIC LIQUID, (B) AN HYDROLYZABLE ESTER OF BORIC ACID, IN THE PROPORTION OF AT LEAST ABOUT 0.1 PART BY WEIGHT OF SAID ESTER PER PART BY WEIGHT OF SAID SURFACEACTIVE AGENT, AND (C) A POLAR, NON-ACIDIC ORGANIC LIQUID, THE AMOUNT OF SAID POLAR LIQUID BEING AT LEAST ABOUT 5% OF THE COMBINED WEIGHTS OF SAID POLAR LIQUID AND SAID NON-POLAR LIQUID, THEREAFTER HYDROLYZING SAID ESTER OF BORIC ACID, AND THEREAFTER RECOVERING FROM THE RESULTING REACTION MIXTURE A DISPERSION, IN SAID NON-POLAR ORGANIC LIQUID, OF THE INORGANIC BORIC ACID COMPOUND RESULTING FROM THE HYDROLYSIS OF SAID ESTER OF BORIC ACID.
Claim 2
Dependent Claim
133 words
A PROCESS FOR PREPARING AN INORGANIC BORIC ACID MATERIAL STABLY DISPERSIBLE IN LIQUID FUELS AND LUBRICANT STOCKS, SAID PROCESS COMPRISING MIXING (A) A SOLUTION OF A LYOPHILIC IONIC SURFACE-ACTIVE AGENT IN A SUBSTANTIALLY NON-POLAR ORGANIC LIQUID, (B) AN HYDROLYZABLE ESTER OF BORIC ACID, IN THE PROPORTION OF AT LEAST ABOUT 0.1 PART BY WEIGHT OF SAID ESTER PER PART BY WEIGHT OF SAID SURFACEACTIVE AGENT, AND (C) A POLAR, NON-ACIDIC ORGANIC LIQUID, THE AMOUNT OF SAID POLAR LIQUID BEING AT LEAST ABOUT 5% OF THE COMBINED WEIGHTS OF SAID POLAR LIQUID AND SAID NON-POLAR LIQUID, THEREAFTER HYDROLYZING SAID ESTER OF BORIC ACID, AND THEREAFTER RECOVERING FROM THE RESULTING REACTION MIXTURE A DISPERSION, IN SAID NON-POLAR ORGANIC LIQUID, OF THE INORGANIC BORIC ACID COMPOUND RESULTING FROM THE HYDROLYSIS OF SAID ESTER OF BORIC ACID.
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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) | 1964-06-05 | 1964-12-05 | 1965-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-06-05 | 1968-12-05 | 1969-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-06-05 | 1972-12-05 | 1973-06-06 | $7700.00 | Window Closed / Lapsed |