Patent US5725904A successfully refreshed from Google Patents.
US5725904A
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Liquid methyltin halide compositions
Assignee: Arkema Inc
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Filing: 1995-06-02
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Granted: 1998-03-10
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Expires: 2015-06-02
Abstract
Abstract Liquid methyltin halide compositions and their use as intermediates in chemical synthesis and as precursors for forming tin oxide coatings on substrates are disclosed.
Inventors
- 👤 William Albert Larkin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 02:39
CPC Classifications
C; C23; C23C; C23C16/00; C23C16/22; C23C16/30; C23C16/40; C23C16/407; C07; C07F; C07F7/00; C07F7/22; C07F7/2208
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
47 words
A composition liquid at 24° C. consisting essentially of a methyl tin halide which is a solid at 25° C. selected from the group consisting of mono methyl tin trichloride, dimethyl tin dichloride and mixtures thereof, and an alkyl tin trichloride which is liquid at 25° C.
Claim 2
Dependent Claim
47 words
A composition liquid at 24° C. consisting essentially of a methyl tin halide which is a solid at 25° C. selected from the group consisting of mono methyl tin trichloride, dimethyl tin dichloride and mixtures thereof, and an alkyl tin trichloride which is liquid at 25° C.
Claim 3
Dependent Claim
26 words
A composition as defined in claim 1 wherein the alkyl tin trichloride is selected from the group consisting of monobutyltin trichloride, monooctyltin trichlorde and mixtures thereof.
Claim 4
Dependent Claim
15 words
A composition as defined in claim 1 wherein the alkyl tin trichloride is monobutyltin trichloride.
Claim 5
Dependent Claim
15 words
A composition as defined in claim 1 wherein the methyl tin halide is monomethyltin trichloride.
Claim 6
Dependent Claim
21 words
A composition as defined in claim 1 wherein the methyl tin halide is monomethyltin trichloride and the alkyltintrihalide is monobutyltin trichloride.
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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) | 2001-03-09 | 2001-09-08 | 2002-03-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-03-09 | 2005-09-08 | 2006-03-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-03-09 | 2009-09-08 | 2010-03-10 | $7700.00 | Window Closed / Lapsed |