US2938007A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compositions comprising an organopolysiloxane, silica and a dicarboxylic acid ester plasticizer and the heat cured product thereof
Assignee: General Electric Co
•
Filing: 1957-06-17
•
Granted: 1960-05-24
•
Expires: 1977-06-17
Abstract
No abstract record available.
Inventors
- 👤 Richard M Savage
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:40
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/04; C08K5/10; C08K5/11; C08K5/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
105 words
A COMPOSITION OF MATTER COMPRISING (1) AN ORGANOPOLYSILOXANE CONVERTIBLE TO THE CURED, SOLID, ELASTIC STATE IN WHICH THE ORGANIC GROUPS ARE ATTACHED TO SILICON BY CARBON-SILICON LINKAGES AND ARE SELECTED FROM THE CLASS CONSISTING OF MONOVALENT HYDROCARBON RADICALS AND HALOGENATED ARYL RADICALS, THERE BEING PRESENT AN AVERAGE OF FROM 1.98 TO 2.05 ORGANIC GROUPS PER SILICON ATOM, (2) A FINELY DIVIDED SILICA FILLER, AND (3) A DIESTER OF A DICARBOXYLIC ACID SELECTED FROM THE CLASS CONSISTING OF AROMATIC DICARBOXYLIC ACIDS AND ALIPHATIC DICARBOXYLIC ACIDS CONTAINING FROM SIX TO TWELVE CARBON ATOMS IN THE CHAIN AND A MONOHYDRIC ALCOHOL CONTAINING FROM FOUR TO TWELVE CARBON ATOMS.
Claim 2
Dependent Claim
105 words
A COMPOSITION OF MATTER COMPRISING (1) AN ORGANOPOLYSILOXANE CONVERTIBLE TO THE CURED, SOLID, ELASTIC STATE IN WHICH THE ORGANIC GROUPS ARE ATTACHED TO SILICON BY CARBON-SILICON LINKAGES AND ARE SELECTED FROM THE CLASS CONSISTING OF MONOVALENT HYDROCARBON RADICALS AND HALOGENATED ARYL RADICALS, THERE BEING PRESENT AN AVERAGE OF FROM 1.98 TO 2.05 ORGANIC GROUPS PER SILICON ATOM, (2) A FINELY DIVIDED SILICA FILLER, AND (3) A DIESTER OF A DICARBOXYLIC ACID SELECTED FROM THE CLASS CONSISTING OF AROMATIC DICARBOXYLIC ACIDS AND ALIPHATIC DICARBOXYLIC ACIDS CONTAINING FROM SIX TO TWELVE CARBON ATOMS IN THE CHAIN AND A MONOHYDRIC ALCOHOL CONTAINING FROM FOUR TO TWELVE CARBON ATOMS.
References Cited (Backward Citations)
US2508196A
Cited
US2717258A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-05-24 | 1963-11-23 | 1964-05-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-05-24 | 1967-11-23 | 1968-05-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-05-24 | 1971-11-23 | 1972-05-24 | $7700.00 | Window Closed / Lapsed |