US3341455A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lubricants containing copolymeric nitrogen compounds
Assignee: Lubrizol Corp
•
Filing: 1967-02-01
•
Granted: 1967-09-12
•
Expires: 1987-02-01
Abstract
No abstract record available.
Inventors
- 👤 Lester E Coleman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:43
CPC Classifications
C; C10; C10M; C10M1/00; C10M1/08; C08; C08F; C08F20/00; C08F20/02; C08F20/52; C08F20/54; C08F20/58; C10M2207/00; C10M2207/02; C10M2207/023; C10M2207/026; C10M2211/00; C10M2211/08; C10M2215/00; C10M2215/02; C10M2215/06; C10M2215/064; C10M2215/065; C10M2217/00; C10M2217/02; C10M2217/024; C10M2217/026; C10M2217/028; C10M2217/06; C10M2219/00; C10M2219/04; C10M2219/044; C10M2219/08; C10M2219/082; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/042; C10M2223/045; C10N; C10N2010/00; C10N2010/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
31 words
A LUBRICATING COMPOSITION COMPRISING 100 PARTS BY WEIGHT OF A LUBRICATING OIL AND UP TO ABOUT 10 PARTS OF AN OIL-SOLUBLE INTERPOLYMER OF (A) AN N-3-OXOHYDROCARBONSUBSTITUTED ACRYLAMIDE HAVING THE STRUCTURAL FORMULA
Claim 2
Dependent Claim
31 words
A LUBRICATING COMPOSITION COMPRISING 100 PARTS BY WEIGHT OF A LUBRICATING OIL AND UP TO ABOUT 10 PARTS OF AN OIL-SOLUBLE INTERPOLYMER OF (A) AN N-3-OXOHYDROCARBONSUBSTITUTED ACRYLAMIDE HAVING THE STRUCTURAL 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) | 1970-09-11 | 1971-03-13 | 1971-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-11 | 1975-03-13 | 1975-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-11 | 1979-03-13 | 1979-09-12 | $7700.00 | Window Closed / Lapsed |