US3170940A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrocarbylmercaptoethyl substituted silicon compounds
Assignee: Union Carbide Corp
•
Filing: 1954-04-15
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Granted: 1965-02-23
•
Expires: 1974-04-15
Abstract
No abstract record available.
Inventors
- 👤 Hugh W Johnston
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:57
CPC Classifications
C; C08; C08G; C08G77/00; C08G77/04; C08G77/22; C08G77/28; C07; C07F; C07F7/00; C07F7/02; C07F7/08; C07F7/18; C07F7/1804; C07F7/1872; C07F7/1892
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
8 words
A PROCESS FOR PREPARING COMPOUNDS HAVING THE FORMULA
Claim 2
Dependent Claim
8 words
A PROCESS FOR PREPARING COMPOUNDS HAVING THE FORMULA
Claim 3
Dependent Claim
13 words
A COPOLYMERIC COMPOSITION OF MATTER CONTAINING BUTYL MERCAPTOETHYL SILOXANE UNITS AND DIPHENYSILOXANE UNITS.
Claim 4
Dependent Claim
13 words
A COPOLYMERIC COMPOSITION OF MATTER CONTAINING BUTYL MERCAPTOETHYL SILOXANE UNITS AND DIPHENYSILOXANE UNITS.
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) | 1968-02-23 | 1968-08-24 | 1969-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-02-23 | 1972-08-24 | 1973-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-02-23 | 1976-08-24 | 1977-02-23 | $7700.00 | Window Closed / Lapsed |