US2607732A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lubricants
Assignee: Standard Oil Co
•
Filing: 1950-06-21
•
Granted: 1952-08-19
•
Expires: 1970-06-21
Abstract
No abstract record available.
Inventors
- 👤 Duchon Karman
- 👤 Frederick H Maclaren
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 08:31
CPC Classifications
C; C10; C10M; C10M1/00; C10M1/08; C10M2201/00; C10M2201/04; C10M2201/041; C10M2201/042; C10M2201/10; C10M2201/102; C10M2203/00; C10M2203/10; C10M2203/102; C10M2203/104; C10M2203/106; C10M2203/108; C10M2205/00; C10M2205/02; C10M2205/024; C10M2205/026; C10M2207/00; C10M2207/10; C10M2207/16; C10M2211/00; C10M2211/02; C10M2211/022; C10M2211/024; C10M2211/06; C10N; C10N2010/00; C10N2010/08; C10N2030/00; C10N2030/08; C10N2040/00; C10N2040/02; C10N2040/12; C10N2040/13; C10N2050/00; C10N2050/10; C10N2060/00; C10N2060/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
58 words
A LUBRICANT COMPOSISITION CONSISTING ESSENTIALLY OF FROM ABOUT 50% TO ABOUT 95% ASPHALT, FROM ABOUT 5% TO ABOUT 30% LEAD NAPHTHENATE AND FROM ABOUT 1% TO ABOUT 20% OF AN OLEFIN POLYMER HAVING A MOLECULAR WEIGHT OF FROM ABOUT 300 TO ABOUT 25,000, SAID OLEFIN POLYMER BEING A POLYMER OF A MONO-OLEFIN OF LESS THAN 6 CARBON ATOMS.
Claim 2
Dependent Claim
58 words
A LUBRICANT COMPOSISITION CONSISTING ESSENTIALLY OF FROM ABOUT 50% TO ABOUT 95% ASPHALT, FROM ABOUT 5% TO ABOUT 30% LEAD NAPHTHENATE AND FROM ABOUT 1% TO ABOUT 20% OF AN OLEFIN POLYMER HAVING A MOLECULAR WEIGHT OF FROM ABOUT 300 TO ABOUT 25,000, SAID OLEFIN POLYMER BEING A POLYMER OF A MONO-OLEFIN OF LESS THAN 6 CARBON ATOMS.
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) | 1955-08-19 | 1956-02-18 | 1956-08-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-08-19 | 1960-02-18 | 1960-08-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-08-19 | 1964-02-18 | 1964-08-19 | $7700.00 | Window Closed / Lapsed |