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US3898255A Expired / Lapsed US ⏱️ 0.0 years remaining

Organosilicon compounds

Assignee: Rhone Progil SA
•
Filing: 1974-04-15
•
Granted: 1975-08-05
•
Expires: 1994-04-15
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Abstract

Abstract Organosilicon compounds of the formula where X is a hydrolyzable group and Y and Y'' are each a hydrolyzable group or a hydrocarbon, prepared by reaction of a silane with an alkenyl ether of a nitrophenol.

Inventors

  • 👤 Francois Meiller

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-26 00:50
CPC Classifications
C; C07; C07F; C07F7/00; C07F7/02; C07F7/08; C07F7/0834; C07F7/12; C07F7/18; C07F7/1804; C08; C08G; C08G77/00; C08G77/04; C08G77/22; C08G77/26

Claims Analysis

Total Claims: 5
Claim 1
Independent Claim 5 words
SILICON COMPOUNDS HAVING THE FORMULA
Claim 2
Dependent Claim 5 words
SILICON COMPOUNDS HAVING THE FORMULA
Claim 3
Dependent Claim 39 words
Polymers and copolymers of the silicon compounds derived from nitrophenols according to claim 1, prepared by hydrolyzing the said compounds, alone or with a functional silane selected from the group consisting of a difunctional silane and a monofunctional silane.
Claim 4
Dependent Claim 11 words
Silicon compounds as defined in claim 1 wherein n is 3.
Claim 5
Dependent Claim 16 words
Homopolymers of silicon compounds derived from nitrophenols prepared By hydrolyzing compounds as defined in claim 1.

References Cited (Backward Citations)

US2823218A Cited
US2970150A Cited
US3020302A Cited
US3375218A Cited
US3678089A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1978-08-04 1979-02-03 1979-08-05 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1982-08-04 1983-02-03 1983-08-05 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1986-08-04 1987-02-03 1987-08-05 $7700.00 Window Closed / Lapsed

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