US3340281A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for producing lubricating oil additives
Assignee: Standard Oil Co
•
Filing: 1965-06-14
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Granted: 1967-09-05
•
Expires: 1985-06-14
Abstract
No abstract record available.
Inventors
- 👤 Jr William T Brannen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:07
CPC Classifications
C; C10; C10M; C10M133/00; C10M133/52; C10M133/56; C08; C08F; C08F8/00; C08F8/30; C08F8/32; C08F2800/00; C08F2800/20; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/24; C10M2215/26; C10M2217/00; C10M2217/04; C10M2217/046; C10M2217/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
18 words
A PROCESS FOR THE PREPARATION OF A LUBRICANT OIL SOLUBLE PRODUCT FROM A POLYALKYLENE AMINE HAVING THE FORMULA
Claim 2
Dependent Claim
18 words
A PROCESS FOR THE PREPARATION OF A LUBRICANT OIL SOLUBLE PRODUCT FROM A POLYALKYLENE AMINE HAVING 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) | 1970-09-04 | 1971-03-06 | 1971-09-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-04 | 1975-03-06 | 1975-09-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-04 | 1979-03-06 | 1979-09-05 | $7700.00 | Window Closed / Lapsed |