Patent US3328340A successfully refreshed from Google Patents.
US3328340A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Organopolysiloxane composition of reduced structure
Assignee: General Electric Co
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Filing: 1963-09-09
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Granted: 1967-06-27
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Expires: 1983-09-09
Abstract
No abstract record available.
Inventors
- 👤 Jr Howard A Vaughn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 10:00
CPC Classifications
C; C08; C08L; C08L83/00; C08L83/04; C07; C07F; C07F7/00; C07F7/02; C07F7/08; C07F7/0834; C07F7/0838; C08G; C08G77/00; C08G77/04; C08G77/22; C08G77/24; C08G77/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
97 words
A COMPOSITION OF MATTER COMPRISING (A) AN ORGANOPOLYSILOXANE CONVERTIBLE TO THE CURED, SOLID, ELASTIC STATE AND CONTAINING AN AVERAGE OF FROM 1.98 TO 2.01 ORGANIC GROUPS PER SILICON ATOM IN WHICH SAID ORGANIC GROUPS ARE ATTACHED TO SILICON BY SILICON-CARBON LINKAGES AND ARE SELECTED FROM THE CLASS CONSISTING OF MONOVALENT HYDROCARBON RADICALS, HALOGENATED MONOVALENT HYDROCARBON RADICALS, AND CYANOALKYL RADICALS, (B) A STRUCTURE INDUCING REINFORCING SILICA FILLER HAVING A SURFACE AREA OF FROM ABOUT 50 TO 500 SQUARE METERS PER GRAM, AND (C) AN AMOUNT OF 1,1,2,2,4,4-HEXAMETHYL-6,6-DIPHENYL-3,5-DIOXA4,6-DISILA-1,6-HEXANEDIOL EFFECTIVE FOR REDUCING THE STRUCTURE AND KNIT TIME OF SUCH COMPOSITION.
Claim 2
Dependent Claim
97 words
A COMPOSITION OF MATTER COMPRISING (A) AN ORGANOPOLYSILOXANE CONVERTIBLE TO THE CURED, SOLID, ELASTIC STATE AND CONTAINING AN AVERAGE OF FROM 1.98 TO 2.01 ORGANIC GROUPS PER SILICON ATOM IN WHICH SAID ORGANIC GROUPS ARE ATTACHED TO SILICON BY SILICON-CARBON LINKAGES AND ARE SELECTED FROM THE CLASS CONSISTING OF MONOVALENT HYDROCARBON RADICALS, HALOGENATED MONOVALENT HYDROCARBON RADICALS, AND CYANOALKYL RADICALS, (B) A STRUCTURE INDUCING REINFORCING SILICA FILLER HAVING A SURFACE AREA OF FROM ABOUT 50 TO 500 SQUARE METERS PER GRAM, AND (C) AN AMOUNT OF 1,1,2,2,4,4-HEXAMETHYL-6,6-DIPHENYL-3,5-DIOXA4,6-DISILA-1,6-HEXANEDIOL EFFECTIVE FOR REDUCING THE STRUCTURE AND KNIT TIME OF SUCH COMPOSITION.
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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) | 1970-06-26 | 1970-12-26 | 1971-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-06-26 | 1974-12-26 | 1975-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-06-26 | 1978-12-26 | 1979-06-27 | $7700.00 | Window Closed / Lapsed |