US3664957A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dehydrocondensed poly(organo) silicones
Assignee: Mobil Oil AS
•
Filing: 1969-11-20
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Granted: 1972-05-23
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Expires: 1989-11-20
Abstract
Abstract Dehydrocondensed poly(organo) silicones are produced by heating a poly(organo) silicone in the presence of an organic peroxide. The products per se, or in combination with other organic fluids, both mineral and synthetic, provide lubricating compositions evidencing good high temperature stability and antiwear properties.
Inventors
- 👤 Leo J Mccabe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 14:08
CPC Classifications
C; C10; C10M; C10M1/00; C10M1/08; C10M2207/00; C10M2207/28; C10M2207/281; C10M2207/282; C10M2207/283; C10M2207/286; C10M2207/34; C10M2215/00; C10M2215/02; C10M2215/06; C10M2215/064; C10M2215/065; C10M2229/00; C10M2229/02; C10M2229/04; C10M2229/041; C10M2229/05
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
16 words
The composition of claim 1 wherein the said oil is a synthetic oil having lubricating viscosity.
Claim 2
Dependent Claim
12 words
The composition of claim 2 wherein said synthetic oil is an ester.
Claim 3
Dependent Claim
14 words
The composition of claim 2 wherein the said synthetic oil is a poly(organo) silicone.
Claim 4
Dependent Claim
14 words
The composition of claim 4 wherein the said poly(organo) silicone is poly(methyl hexyl) silicone.
Claim 5
Dependent Claim
14 words
The composition of claim 1 wherein the said product is dehydrocondensed poly(methyl hexyl) silicone.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-05-23 | 1975-11-22 | 1976-05-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-23 | 1979-11-22 | 1980-05-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-23 | 1983-11-22 | 1984-05-23 | $7700.00 | Window Closed / Lapsed |