US3200076A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polypiperazinyl succinimides in lubricating oils
Assignee: California Research LLC
•
Filing: 1963-03-28
•
Granted: 1965-08-10
•
Expires: 1983-03-28
Abstract
No abstract record available.
Inventors
- 👤 Robert G Anderson
- 👤 Lewis R Honnen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:33
CPC Classifications
C; C07; C07D; C07D207/00; C07D207/02; C07D207/30; C07D207/34; C07D207/36; C07D207/40; C07D207/404; C07D207/408; C07D207/412; C07D295/00; C07D295/04; C07D295/12; C07D295/125; C07D295/13; C10; C10M; C10M133/00; C10M133/52; C10M133/58; C10M2203/00; C10M2203/06; C10M2205/00; C10M2205/02; C10M2205/024; C10M2205/026; C10M2207/00; C10M2207/04; C10M2207/28; C10M2207/282; C10M2207/34; C10M2209/00; C10M2209/10; C10M2209/103; C10M2209/105; C10M2209/108; C10M2215/00; C10M2215/086; C10M2215/24; C10M2215/28; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/042; C10M2223/045; C10M2227/00; C10M2227/02; C10M2229/00; C10M2229/04; C10M2229/045; C10M2229/046; C10M2229/047; C10M2229/048; C10N; C10N2010/00; C10N2010/04
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
53 words
THE PRODUCT OF THE PROCESS WHICH COMPRISES REACTING ALKENYL SUCCINIC ACID COMPOUNDS SELECTED FROM THE CLASS CONSISTING OF ALKENYL SUCCINIC ACIDS, ALKENYL SUCCINIC ANHYDRIDES, ALKENYL SUCCINIC HALIDES AND LOWER ALKYL ESTERS OF ALKENYL SUCCINIC ACIDS, IN WHICH THE ALKENYL GROUP CONTAINS, FROM 30 TO 4000 CARBON ATOMS WITH POLYPIPERAZINYL ALKYLENES HAVING THE FORMULA:
Claim 2
Dependent Claim
53 words
THE PRODUCT OF THE PROCESS WHICH COMPRISES REACTING ALKENYL SUCCINIC ACID COMPOUNDS SELECTED FROM THE CLASS CONSISTING OF ALKENYL SUCCINIC ACIDS, ALKENYL SUCCINIC ANHYDRIDES, ALKENYL SUCCINIC HALIDES AND LOWER ALKYL ESTERS OF ALKENYL SUCCINIC ACIDS, IN WHICH THE ALKENYL GROUP CONTAINS, FROM 30 TO 4000 CARBON ATOMS WITH POLYPIPERAZINYL ALKYLENES HAVING THE FORMULA:
Claim 3
Dependent Claim
28 words
A LUBRICANT COMPOSITION COMPRISING A MAJOR PROPORTION OF AN OIL OF LUBRICATING VISCOSITY AND A MINOR PROPORTION SUFFICIENT TO ENHANCE THEDETERGENT CHARACTERISTICS OF THE PRODUCT OF CLAIM 1.
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) | 1968-08-09 | 1969-02-08 | 1969-08-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-09 | 1973-02-08 | 1973-08-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-09 | 1977-02-08 | 1977-08-10 | $7700.00 | Window Closed / Lapsed |