Patent US3294684A successfully refreshed from Google Patents.
US3294684A
Expired / Lapsed
US
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Lubricant compositions containing detergency additives
Assignee: Standard Oil Co
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Filing: 1963-07-11
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Granted: 1966-12-27
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Expires: 1983-07-11
Abstract
No abstract record available.
Inventors
- 👤 Herbert A Mcninch
- 👤 Robert E Karll
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 13:32
CPC Classifications
C; C10; C10M; C10M159/00; C10M159/12; C10M159/123; C10M159/126; C07; C07F; C07F9/00; C07F9/02; C07F9/04; C08; C08F; C08F8/00; C08F8/40; C10M133/00; C10M133/52; C10M133/56; C10M2203/00; C10M2203/10; C10M2203/108; C10M2205/00; C10M2205/02; C10M2207/00; C10M2207/28; C10M2207/282; C10M2207/34; C10M2209/00; C10M2209/02; C10M2209/08; C10M2209/082; C10M2209/10; C10M2209/103; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/043; C10M2223/045; C10M2223/12; C10M2225/00; C10M2225/04; C10M2225/041; C10M2227/00; C10M2227/06; C10N; C10N2010/00; C10N2010/04; C10N2010/06; C10N2070/00; C10N2070/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
81 words
A LUBRICANT ADDITIVE COMPOSITION WHICH COMPRISES THE PRODUCT OF FIRST REACTING IN EQUIMOLECULAR PROPORTIONS A PHOSPHOSULFURIZED POLYBUTENE AND AN ETHYLENE AMINE POLYAMINE AT 200 TO 400*F. FOLLOWED BY REACTION WITH AN EQUIMOLECULAR PROPORTION OF POLYBUTENYL SUCCINIC ANHYDRIDE AT A TEMPERATURE OF FROM 250 TO 300* F. AND THEN REACTED WITH BORIC ACID IN AN AMOUNT IN THE RANGE OF FROM 2 TO 7 MOLES PER MOLE OF SAID POLYAMINE AT A TEMPERATURE IN THE RANGE OF FROM 300 TO 400* F.
Claim 2
Dependent Claim
81 words
A LUBRICANT ADDITIVE COMPOSITION WHICH COMPRISES THE PRODUCT OF FIRST REACTING IN EQUIMOLECULAR PROPORTIONS A PHOSPHOSULFURIZED POLYBUTENE AND AN ETHYLENE AMINE POLYAMINE AT 200 TO 400*F. FOLLOWED BY REACTION WITH AN EQUIMOLECULAR PROPORTION OF POLYBUTENYL SUCCINIC ANHYDRIDE AT A TEMPERATURE OF FROM 250 TO 300* F. AND THEN REACTED WITH BORIC ACID IN AN AMOUNT IN THE RANGE OF FROM 2 TO 7 MOLES PER MOLE OF SAID POLYAMINE AT A TEMPERATURE IN THE RANGE OF FROM 300 TO 400* F.
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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) | 1969-12-26 | 1970-06-27 | 1970-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-26 | 1974-06-27 | 1974-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-26 | 1978-06-27 | 1978-12-27 | $7700.00 | Window Closed / Lapsed |