US3329613A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lubricating-oil additive
Assignee: BASF SE
•
Filing: 1963-09-24
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Granted: 1967-07-04
•
Expires: 1983-09-24
Abstract
No abstract record available.
Inventors
- 👤 Fischer Diether
- 👤 Mueller Herbert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:22
CPC Classifications
C; C10; C10M; C10M143/00; C10M143/12; C10M2205/00; C10M2205/06; C10M2207/00; C10M2207/10; C10M2207/12; C10M2207/121; C10M2207/122; C10M2207/28; C10M2207/281; C10M2207/282; C10M2207/283; C10M2207/286; C10M2209/00; C10M2209/02; C10M2209/08; C10M2209/084; C10M2209/086; C10M2215/00; C10M2215/08; C10M2215/082; C10M2215/086; C10M2215/24; C10M2215/28; C10M2217/00; C10M2217/02; C10M2217/024; C10M2217/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
33 words
A LUBRICANT COMPRISING IN COMBINATION (1) A LUBRICATING OIL AND (2) A MINOR AMOUNT OF A POLYMER OF BUTADIENE HAVING A MOLECULAR WEIGHT OF 1,000 TO 10,000 AND A SUBSTANTIALLY UNIFORM (CIS) 1,4-STRUCTURE.
Claim 2
Dependent Claim
33 words
A LUBRICANT COMPRISING IN COMBINATION (1) A LUBRICATING OIL AND (2) A MINOR AMOUNT OF A POLYMER OF BUTADIENE HAVING A MOLECULAR WEIGHT OF 1,000 TO 10,000 AND A SUBSTANTIALLY UNIFORM (CIS) 1,4-STRUCTURE.
References Cited (Backward Citations)
US2542542A
Cited
US3178402A
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US3172892A
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US3018250A
Cited
US3166542A
Cited
US3203945A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-07-03 | 1971-01-02 | 1971-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-03 | 1975-01-02 | 1975-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-03 | 1979-01-02 | 1979-07-04 | $7700.00 | Window Closed / Lapsed |