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US3576023A Expired / Lapsed US ⏱️ 0.0 years remaining

Method for preparation of si-h functional organodisiloxanes

Assignee: Texas Instruments Inc
•
Filing: 1968-07-31
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Granted: 1971-04-20
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Expires: 1988-07-31
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Abstract

Abstract REACTING A TERTIARY ALCOHOL SUCH AS TERT-BUTYL ALCOHOL ((CH3)3COH) WITH A DIORGANOHALOSILANE SUCH AS DIMETHYLCHLOROSILANE ((CH3)2SIHC1) TO PRODUCE SI-H FUNCTIONAL ORGANODISILOXANES SUCH AS SYM-TETAMETHYLDISIOLOXANE (H-SI(-CH3)2)2-O HAVING SI-H BONDS.

Inventors

  • 👤 James William Curry

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-08 08:19
CPC Classifications
C; C07; C07F; C07F7/00; C07F7/02; C07F7/08; C07F7/0896

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

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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) 1974-04-19 1974-10-19 1975-04-20 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1978-04-19 1978-10-19 1979-04-20 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1982-04-19 1982-10-19 1983-04-20 $7700.00 Window Closed / Lapsed

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