US2515129A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lubricant composition
Assignee: Standard Oil Development Co
•
Filing: 1945-08-22
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Granted: 1950-07-11
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Expires: 1965-08-22
Abstract
No abstract record available.
Inventors
- 👤 Lieber Eugene
- 👤 Aloysius F Cashman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 01:02
CPC Classifications
C; C10; C10M; C10M135/00; C10M135/02; C10M2219/00; C10M2219/02; C10M2219/06; C10M2219/062; C10M2219/08; C10M2219/082; C10M2219/086; C10M2219/087; C10M2219/089; C10M2221/00; C10M2221/02; C10M2221/04; C10M2221/041; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/042; C10N; C10N2010/00; C10N2010/04; C10N2010/06; C10N2010/08; C10N2010/12; C10N2010/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
59 words
COMPOSITION CONSISTING ESSENTIALLY OF A WAXY MINERAL LUBRICATING OIL HAVING DISSOLVED THEREIN AT LEAST A POUR DEPRESSING AMOUNT OF A FRIEDELCRAFTS CONDENSATION PRODUCT OF A SULFURIZED HIGHLY CHLORINATED PARAFFIN WAX WITH NAPHTHALENE, SAID CONDENSATION PRODUCT HAVING AN AVERAGE MOLECULAR WEIGHT OF BETWEEN 500 AND 3000, AND CONTAINING ABOUT 10 TO 30% OF CHLORINE AND ABOUT 2 TO 20% SULFUR.
Claim 2
Dependent Claim
59 words
COMPOSITION CONSISTING ESSENTIALLY OF A WAXY MINERAL LUBRICATING OIL HAVING DISSOLVED THEREIN AT LEAST A POUR DEPRESSING AMOUNT OF A FRIEDELCRAFTS CONDENSATION PRODUCT OF A SULFURIZED HIGHLY CHLORINATED PARAFFIN WAX WITH NAPHTHALENE, SAID CONDENSATION PRODUCT HAVING AN AVERAGE MOLECULAR WEIGHT OF BETWEEN 500 AND 3000, AND CONTAINING ABOUT 10 TO 30% OF CHLORINE AND ABOUT 2 TO 20% SULFUR.
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) | 1953-07-10 | 1954-01-09 | 1954-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-07-10 | 1958-01-09 | 1958-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-07-10 | 1962-01-09 | 1962-07-11 | $7700.00 | Window Closed / Lapsed |