Patent US3215718A successfully refreshed from Google Patents.
US3215718A
Expired / Lapsed
US
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Sulfur-containing organosilicon compounds and method of preparation
Assignee: Dow Silicones Corp
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Filing: 1961-11-24
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Granted: 1965-11-02
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Expires: 1981-11-24
Abstract
No abstract record available.
Inventors
- 👤 John W Ryan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 07:54
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/37; D06M15/643; D06M15/6436; C; C07; C07F; C07F7/00; C07F7/02; C07F7/08; C07F7/0834; C07F7/0838; C07F7/18; C07F7/1804; C08; C08G; C08G77/00; C08G77/04; C08G77/22; C08G77/28
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
8 words
A SILANE THIURONIUM SALT OF THE GENERAL FORMULA
Claim 2
Dependent Claim
8 words
A SILANE THIURONIUM SALT OF THE GENERAL FORMULA
Claim 3
Dependent Claim
7 words
A SULFUR-CONTAINING SILOXANE OF THE UNIT FORMULA
Claim 4
Dependent Claim
7 words
A SULFUR-CONTAINING SILOXANE OF THE UNIT FORMULA
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) | 1968-11-01 | 1969-05-03 | 1969-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-01 | 1973-05-03 | 1973-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-01 | 1977-05-03 | 1977-11-02 | $7700.00 | Window Closed / Lapsed |