US3359202A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lubricating compositions
Assignee: Rohm and Haas Co
•
Filing: 1965-10-29
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Granted: 1967-12-19
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Expires: 1985-10-29
Abstract
No abstract record available.
Inventors
- 👤 Robert L Stambaugh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 20:35
CPC Classifications
C; C10; C10M; C10M1/00; C10M1/08; C10M2207/00; C10M2207/28; C10M2207/282; C10M2207/34; C10M2215/00; C10M2215/08; C10M2215/082; C10M2215/24; C10M2215/28; C10M2219/00; C10M2219/04; C10M2219/044; C10M2219/046
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
64 words
A LUBRICATING COMPOSITION COMPRISING A MAJOR PORTION OF AN OIL BASE AND A MINOR PORTION SUFFICIENT TO INHIBIT CORROSION OF AN OIL-SOLUBLE PETROLEUM SULFONATE IN THE FORM OF ITS ALKALINE EARTH SALT IN THE AMOUNT OF ABOUT 0.2 TO 7.5% BY WEIGHT OF SAID OIL AND AN ALKYLFORMAMIDE, IN THE AMOUNT OF ABOUT 0.05 TO 3% BY WEIGHT OF SAID OIL, HAVING THE FORMULA
Claim 2
Dependent Claim
64 words
A LUBRICATING COMPOSITION COMPRISING A MAJOR PORTION OF AN OIL BASE AND A MINOR PORTION SUFFICIENT TO INHIBIT CORROSION OF AN OIL-SOLUBLE PETROLEUM SULFONATE IN THE FORM OF ITS ALKALINE EARTH SALT IN THE AMOUNT OF ABOUT 0.2 TO 7.5% BY WEIGHT OF SAID OIL AND AN ALKYLFORMAMIDE, IN THE AMOUNT OF ABOUT 0.05 TO 3% BY WEIGHT OF SAID OIL, 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) | 1970-12-18 | 1971-06-19 | 1971-12-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-12-18 | 1975-06-19 | 1975-12-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-12-18 | 1979-06-19 | 1979-12-19 | $7700.00 | Window Closed / Lapsed |