US3400075A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lubricating compositions including a polymer which contains a salt or amide of a diimide
Assignee: Union Carbide Corp
•
Filing: 1966-11-15
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Granted: 1968-09-03
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Expires: 1986-11-15
Abstract
No abstract record available.
Inventors
- 👤 Donald C Grimm
- 👤 Jr Leonard Pierce
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 18:53
CPC Classifications
C; C07; C07D; C07D207/00; C07D207/02; C07D207/30; C07D207/34; C07D207/36; C07D207/40; C07D207/404; C10; C10M; C10M145/00; C10M145/02; C10M145/10; C10M145/12; C10M145/14; C10M161/00; C10M2203/00; C10M2203/10; C10M2203/104; C10M2203/106; C10M2209/00; C10M2209/02; C10M2209/08; C10M2209/084; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/24; C10M2215/26; C10M2217/00; C10M2217/02; C10M2217/04; C10M2217/046; C10M2217/06; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/045; C10N; C10N2040/00; C10N2040/25; C10N2040/251; C10N2040/255; C10N2040/28
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
71 words
A LUBRICATING COMPOSITION WHICH COMPRISES A MAJOR AMOUNT OF HYDROCARBON OIL OF LUBRICATIN VISCOSITY AND A MINOR AMOUNT, SUFFICIENT TO ENHANCE THE DETERMENT CHARACTERISTICS OF SAID OIL, OF A COPOLYMER OF (A) AN OIL-SOLUBILIZING PROPORTION OF A LONG CHAIN ALKYL ACRYLATE OR METHACRYLATE, SAID LONG CHAIN ALKYL CONTAINING FROM ABOUT 8 TO ABOUR 20 CARBON ATMS AND (B) AN ACRYLIC OR METHACRYLIC SALT OR AMIDE OF A DIIMIDE OF THE FORMULA:
Claim 2
Dependent Claim
71 words
A LUBRICATING COMPOSITION WHICH COMPRISES A MAJOR AMOUNT OF HYDROCARBON OIL OF LUBRICATIN VISCOSITY AND A MINOR AMOUNT, SUFFICIENT TO ENHANCE THE DETERMENT CHARACTERISTICS OF SAID OIL, OF A COPOLYMER OF (A) AN OIL-SOLUBILIZING PROPORTION OF A LONG CHAIN ALKYL ACRYLATE OR METHACRYLATE, SAID LONG CHAIN ALKYL CONTAINING FROM ABOUT 8 TO ABOUR 20 CARBON ATMS AND (B) AN ACRYLIC OR METHACRYLIC SALT OR AMIDE OF A DIIMIDE 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) | 1971-09-03 | 1972-03-04 | 1972-09-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-09-03 | 1976-03-04 | 1976-09-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-09-03 | 1980-03-04 | 1980-09-03 | $7700.00 | Window Closed / Lapsed |