Patent US2742428A successfully refreshed from Google Patents.
US2742428A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Organopolysiloxane lubricants
Assignee: General Electric Co
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Filing: 1950-03-23
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Granted: 1956-04-17
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Expires: 1970-03-23
Abstract
No abstract record available.
Inventors
- 👤 Maynard C Agens
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 21:55
CPC Classifications
C; C10; C10M; C10M7/00; C10M3/00; C10M2207/00; C10M2207/10; C10M2207/12; C10M2207/125; C10M2207/129; C10M2207/28; C10M2207/282; C10M2207/34; C10M2211/00; C10M2211/02; C10M2211/022; C10M2211/06; C10M2213/00; C10M2213/02; C10M2213/06; C10M2213/062; C10M2219/00; C10M2219/08; C10M2219/082; C10M2219/085; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/042; C10M2229/00; C10M2229/04; C10M2229/041; C10M2229/042; C10M2229/043; C10M2229/044; C10N; C10N2010/00; C10N2010/02; C10N2020/00; C10N2020/01; C10N2050/00; C10N2050/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
91 words
A COMPOSITION OF MATTER CONSISTING ESSENTIALLY OF (1) A MAJOR PROPORTION OF A LIQUID ORGANOPOLYSILOXANE AND (2) MINOR PROPORTION IN AN AMOUNT UP TO 25%, BY WEIGHT, OF THE WEIGHT OF THE ORGANOPOLYSILOXANE, OF A SUBSITUTED ALIPHATIC HYDROCARBON COMPOUND CONTAINING BOTH CHLORINE AND FLUORINE AND BEING SELECTED FROM THE CLASS CONSITING OF DICHLORODIFLUOROETHANE, TRICHLORTRIFLUOROETHANE, PENTACHLOROTRIFLUOROETHANE, HEXACHLORODIFLUOROPROPANE, TRICHLOROTRIFLUOROPROPENE, TRETRACHLOROTRIFLYOROPROPANE, DICHLORDIFLUOROPROPANE, TETRACHLOROTETRAFLUOROPROPANE, TETRACHLORODIFLUOROPROPENE, TRICHLOROTRIFLUOROPROPENE, DICHLOROHEXAFLUOROBUTENE, DICHLOROHEXAFLUOROCYCLOBUTANE, 1,2-DICHLORO-3,3,4,4,5,5-HEXAFLUOROCYCLOPENTENE-1, TRICHLOROPENTAFLUOROCYCLOHEXADIENE, TETRACHLOROHEXAFLUOROBUTANE, 1,1,1,3,3,3-HEXAFLUORO-2,3-DICHLOROPROPENE-2, DECAFLUOROCHLOROHEXANE, CHLOROPENTADECAFLUOROHEPTANE, TRICHLOROTRIDECAFLUOROHEPTANE, DICHLORODECAFLUOROHEPTANE, CHLOROHEXADECAFLUOROOCTANE, AND LIQUID, LINEAR, LOW MOLECULAR WEIGHT POLYMERS OF AT MOST 20-CARBON ATOM LENGTH CONSISTING ESSENTIALLY OF RECURRING CONNECTED
Claim 2
Dependent Claim
91 words
A COMPOSITION OF MATTER CONSISTING ESSENTIALLY OF (1) A MAJOR PROPORTION OF A LIQUID ORGANOPOLYSILOXANE AND (2) MINOR PROPORTION IN AN AMOUNT UP TO 25%, BY WEIGHT, OF THE WEIGHT OF THE ORGANOPOLYSILOXANE, OF A SUBSITUTED ALIPHATIC HYDROCARBON COMPOUND CONTAINING BOTH CHLORINE AND FLUORINE AND BEING SELECTED FROM THE CLASS CONSITING OF DICHLORODIFLUOROETHANE, TRICHLORTRIFLUOROETHANE, PENTACHLOROTRIFLUOROETHANE, HEXACHLORODIFLUOROPROPANE, TRICHLOROTRIFLUOROPROPENE, TRETRACHLOROTRIFLYOROPROPANE, DICHLORDIFLUOROPROPANE, TETRACHLOROTETRAFLUOROPROPANE, TETRACHLORODIFLUOROPROPENE, TRICHLOROTRIFLUOROPROPENE, DICHLOROHEXAFLUOROBUTENE, DICHLOROHEXAFLUOROCYCLOBUTANE, 1,2-DICHLORO-3,3,4,4,5,5-HEXAFLUOROCYCLOPENTENE-1, TRICHLOROPENTAFLUOROCYCLOHEXADIENE, TETRACHLOROHEXAFLUOROBUTANE, 1,1,1,3,3,3-HEXAFLUORO-2,3-DICHLOROPROPENE-2, DECAFLUOROCHLOROHEXANE, CHLOROPENTADECAFLUOROHEPTANE, TRICHLOROTRIDECAFLUOROHEPTANE, DICHLORODECAFLUOROHEPTANE, CHLOROHEXADECAFLUOROOCTANE, AND LIQUID, LINEAR, LOW MOLECULAR WEIGHT POLYMERS OF AT MOST 20-CARBON ATOM LENGTH CONSISTING ESSENTIALLY OF RECURRING CONNECTED
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) | 1959-04-17 | 1959-10-17 | 1960-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-04-17 | 1963-10-17 | 1964-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-04-17 | 1967-10-17 | 1968-04-17 | $7700.00 | Window Closed / Lapsed |