US3088964A
Expired / Lapsed
US
⏱️ 0.0 years remaining
2-phenylpropyl organosiloxanes
Assignee: Dow Silicones Corp
•
Filing: 1958-09-29
•
Granted: 1963-05-07
•
Expires: 1978-09-29
Abstract
No abstract record available.
Inventors
- 👤 John W Ryan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 16:58
CPC Classifications
C; C07; C07F; C07F7/00; C07F7/02; C07F7/21; C07F7/08; C07F7/0834; C07F7/0838; C07F7/0896; C08; C08G; C08G77/00; C08G77/04
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
5 words
AN ORGANODISILOXANE OF THE FORMULA
Claim 2
Dependent Claim
5 words
AN ORGANODISILOXANE OF THE FORMULA
Claim 3
Dependent Claim
68 words
A PROCESS FOR THE PRODUCTION OF ARALKYL SUBSTITUTED ORGANOSILICON COMPOUNDS IN IMPROVED YIELDS WHICH COMPRISES REACTING (1) A-METHYLSTYRENE WITH (2) AN ORGANOSILICON COMPOUND OF THE FORMULA RXHSICL3-X WHERE R REPRESENTS A MONOVALENT HYDROCARBON RADICAL FREE OF ALIPHATIC UNSATURATION AND X IS AN INTEGER OF FROM 1 TO 2 INCLUSIVE, BY CONTACTING (1) AND (2) IN THE LIQUID PHASE IN THE PRESENCE OF A CATALYTIC QUANTITY OF CHLOROPLATINIC ACID.
Claim 4
Dependent Claim
68 words
A PROCESS FOR THE PRODUCTION OF ARALKYL SUBSTITUTED ORGANOSILICON COMPOUNDS IN IMPROVED YIELDS WHICH COMPRISES REACTING (1) A-METHYLSTYRENE WITH (2) AN ORGANOSILICON COMPOUND OF THE FORMULA RXHSICL3-X WHERE R REPRESENTS A MONOVALENT HYDROCARBON RADICAL FREE OF ALIPHATIC UNSATURATION AND X IS AN INTEGER OF FROM 1 TO 2 INCLUSIVE, BY CONTACTING (1) AND (2) IN THE LIQUID PHASE IN THE PRESENCE OF A CATALYTIC QUANTITY OF CHLOROPLATINIC ACID.
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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) | 1966-05-06 | 1966-11-05 | 1967-05-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-05-06 | 1970-11-05 | 1971-05-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-05-06 | 1974-11-05 | 1975-05-07 | $7700.00 | Window Closed / Lapsed |