Patent US3261801A successfully refreshed from Google Patents.
US3261801A
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Reversion resistant organopolysiloxane containing barium oxide or barium peroxide
Assignee: General Electric Co
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Filing: 1962-08-22
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Granted: 1966-07-19
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Expires: 1982-08-22
Abstract
No abstract record available.
Inventors
- 👤 Wilbur J Wormuth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:21
CPC Classifications
C; C08; C08K; C08K3/00; C08K3/18; C08K3/20; C08K3/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
110 words
AN ORGANOPOLYSILOXANE COMPOSITION COMPRISING (1) 100 PARTS, BY WEIGHT, OF AN ORGANOPOLYSILOXANE, (2) FROM 10 TO 200 PARTS OF A FILLER, (3) 0.1 TO 10 PARTS OF AN OXIDE OF BARIUM SELECTED FROM THE CLASS CONSISTING OF BARIUM OXIDE AND BARIUM PEROXIDE, SAID ORGANOPOLYSILOXANE BEING CONVERTIBLE TO THE SOLID, CURED, ELASTIC STATE AND HAVING A VISCOSITY OF AT LEAST 100,000 CENTIPOISES AT 25*C., IN WHICH THE ORGANO RADICALS OF SAID ORGANOPOLYSILOXANE BEING ATTACHED TO SILICON THROUGH SILICON-CARBON LINKAGES AND BEING SELECTED FROM THE CLASS CONSISTING OF MONOVALENT HYDROCARBON RADICALS, HALOGENATED MONOVALENT HYDROCARBON RADICALS, AND CYANOALKYL RADICALS, THERE BEING AN AVERAGE OF ABOUT 1.95 TO 2.05 ORGANO RADICALS PER SILICON ATOM.
Claim 2
Dependent Claim
110 words
AN ORGANOPOLYSILOXANE COMPOSITION COMPRISING (1) 100 PARTS, BY WEIGHT, OF AN ORGANOPOLYSILOXANE, (2) FROM 10 TO 200 PARTS OF A FILLER, (3) 0.1 TO 10 PARTS OF AN OXIDE OF BARIUM SELECTED FROM THE CLASS CONSISTING OF BARIUM OXIDE AND BARIUM PEROXIDE, SAID ORGANOPOLYSILOXANE BEING CONVERTIBLE TO THE SOLID, CURED, ELASTIC STATE AND HAVING A VISCOSITY OF AT LEAST 100,000 CENTIPOISES AT 25*C., IN WHICH THE ORGANO RADICALS OF SAID ORGANOPOLYSILOXANE BEING ATTACHED TO SILICON THROUGH SILICON-CARBON LINKAGES AND BEING SELECTED FROM THE CLASS CONSISTING OF MONOVALENT HYDROCARBON RADICALS, HALOGENATED MONOVALENT HYDROCARBON RADICALS, AND CYANOALKYL RADICALS, THERE BEING AN AVERAGE OF ABOUT 1.95 TO 2.05 ORGANO RADICALS PER SILICON ATOM.
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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) | 1969-07-18 | 1970-01-17 | 1970-07-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-18 | 1974-01-17 | 1974-07-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-18 | 1978-01-17 | 1978-07-19 | $7700.00 | Window Closed / Lapsed |