US2993860A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymerized ester containing lubricant compositions and process for preparing same
Assignee: Geigy Co Ltd
•
Filing: 1958-01-28
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Granted: 1961-07-25
•
Expires: 1978-01-28
Abstract
No abstract record available.
Inventors
- 👤 Critchley Stuart Walter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 20:21
CPC Classifications
C; C10; C10M; C10M1/00; C10M1/08; C08; C08F; C08F18/00; C08F18/02; C08F18/04; C08F18/08; C08F18/12; C10M2207/00; C10M2207/28; C10M2207/282; C10M2207/34; C10M2209/00; C10M2209/02; C10M2209/04; C10M2209/06; C10M2209/062; C10M2213/00; C10M2213/04; C10M2213/06; C10M2219/00; C10M2219/02; C10M2219/024; C10M2221/00; C10M2221/04; C10M2223/00; C10M2223/12; C10M2225/00; C10M2225/02; C10N; C10N2030/00; C10N2030/08; C10N2040/00; C10N2040/12; C10N2040/13
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
115 words
A PROCESS FOR PRODUCING A LUBRICANT COMPOSITION CONSISTING ESSENTIALLY OF ESTERIFYING A DICARBOXYLIC ACID SELECTED FROM THE GROUP CONSISTING OF ADIPIC, SEBACIC, AZELAIC AND PHTHALIC ACIDS, WITH A MIXTURE CONSISTING ESENTIALLY OF (A) A MAJOR PROPORTION OF A SATURATED MONOHYDRIC ALIPHATIC ALCOHOL CONTAINING FROM 4 TO 16 CARBON ATOMS AND (B) A MINOR PROPORTION OF ALLYL ALCOHOL TO FORM A COMPOSITION CONSISTING ESSENTIALLY OF A SYMMETRICAL SATURATED ESTER OF SAID DICARBOXYLIC ACID AND AN UNSYMMETRICAL UNSATURATED ESTER OF SAID DICARBOXYLIC ACID, THE TOTAL AMOUNT OF SAID MIXTURE BEING NOT LESS THAN TWO MOLECULAR PROPORTIONS FOR EACH MOLECULAR PROPORTION OF SAID DICARBOXYLIC ACID, AND POLYMERIZING SAID UNSYMMETRICAL UNSATURATED ESTER OF SAID DICARBOXYLIC ACID IN SAID COMPOSITION.
Claim 2
Dependent Claim
115 words
A PROCESS FOR PRODUCING A LUBRICANT COMPOSITION CONSISTING ESSENTIALLY OF ESTERIFYING A DICARBOXYLIC ACID SELECTED FROM THE GROUP CONSISTING OF ADIPIC, SEBACIC, AZELAIC AND PHTHALIC ACIDS, WITH A MIXTURE CONSISTING ESENTIALLY OF (A) A MAJOR PROPORTION OF A SATURATED MONOHYDRIC ALIPHATIC ALCOHOL CONTAINING FROM 4 TO 16 CARBON ATOMS AND (B) A MINOR PROPORTION OF ALLYL ALCOHOL TO FORM A COMPOSITION CONSISTING ESSENTIALLY OF A SYMMETRICAL SATURATED ESTER OF SAID DICARBOXYLIC ACID AND AN UNSYMMETRICAL UNSATURATED ESTER OF SAID DICARBOXYLIC ACID, THE TOTAL AMOUNT OF SAID MIXTURE BEING NOT LESS THAN TWO MOLECULAR PROPORTIONS FOR EACH MOLECULAR PROPORTION OF SAID DICARBOXYLIC ACID, AND POLYMERIZING SAID UNSYMMETRICAL UNSATURATED ESTER OF SAID DICARBOXYLIC ACID IN SAID COMPOSITION.
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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) | 1964-07-24 | 1965-01-23 | 1965-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-24 | 1969-01-23 | 1969-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-24 | 1973-01-23 | 1973-07-25 | $7700.00 | Window Closed / Lapsed |