US2623019A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lubricating oils
Assignee: General Electric Co
•
Filing: 1947-01-16
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Granted: 1952-12-23
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Expires: 1967-01-16
Abstract
No abstract record available.
Inventors
- 👤 Donald F Wilcock
- 👤 Murray M Sprung
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 13:25
CPC Classifications
C; C10; C10M; C10M3/00; C10M2211/00; C10M2211/02; C10M2211/022; C10M2211/04; C10M2211/044; C10M2211/06; C10M2219/00; C10M2219/08; C10M2219/082; C10M2219/085; C10M2229/00; C10M2229/02; C10M2229/04; C10M2229/041; C10M2229/042; C10M2229/043; C10M2229/044; C10M2229/05; C10M2229/051
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
81 words
A LUBRICATING OIL CONSISTING ESSENTIALLY OF (1) A LIQUID POLYMERIC HYDRROCARBON-SUBSTITUTED POLYSILOXANE CONTAINING AN AVERAGE OF FROM 1.9 TO 2.67 HYDROCARBON GROUPS PER SILICON ATOM AND (2) FROM 3 TO 15 PER CENT, BY WEIGHT, BASED ON THE WEIGHTT OF (1) OF A MIXTURE OF INGREDIENTS COMPRISING (A) A CHLORINATED COMPOUND HAVING A BOILING POINT ABOVE 100* C. AND SELECTED FROM THE CLASS CONSISTING OF CHLORINATED ALIPHATIC HYDROCARBONS AND CHLORINATED CYCLOALIPHATIC HYDROCARBONS AND, (B) A COMPOUND CORRESPONDING TO THE GENERAL FORMULA
Claim 2
Dependent Claim
81 words
A LUBRICATING OIL CONSISTING ESSENTIALLY OF (1) A LIQUID POLYMERIC HYDRROCARBON-SUBSTITUTED POLYSILOXANE CONTAINING AN AVERAGE OF FROM 1.9 TO 2.67 HYDROCARBON GROUPS PER SILICON ATOM AND (2) FROM 3 TO 15 PER CENT, BY WEIGHT, BASED ON THE WEIGHTT OF (1) OF A MIXTURE OF INGREDIENTS COMPRISING (A) A CHLORINATED COMPOUND HAVING A BOILING POINT ABOVE 100* C. AND SELECTED FROM THE CLASS CONSISTING OF CHLORINATED ALIPHATIC HYDROCARBONS AND CHLORINATED CYCLOALIPHATIC HYDROCARBONS AND, (B) A COMPOUND CORRESPONDING TO THE GENERAL FORMULA
References Cited (Backward Citations)
US2258219A
Cited
US2382082A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-12-23 | 1956-06-23 | 1956-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-12-23 | 1960-06-23 | 1960-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-12-23 | 1964-06-23 | 1964-12-23 | $7700.00 | Window Closed / Lapsed |