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Patent US2819236A successfully refreshed from Google Patents.
US2819236A
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Low durometer siloxane elastomers
Assignee: Dow Silicones Corp
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Filing: 1954-12-23
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Granted: 1958-01-07
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Expires: 1974-12-23
Abstract
No abstract record available.
Inventors
- 👤 Norbert G Dickmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:10
CPC Classifications
C; C08; C08L; C08L83/00; C08L83/04; C08G; C08G77/00; C08G77/04; C08G77/20; C08G77/42; C08G77/44; C08G77/70
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
88 words
A HEAT HARDENABLE COMPOSITION OF MATTER COMPRISING (1) 100 PARTS BY WEIGHT OF A DIORGANOPOLYSILOXANE GUM IN WHCIH THE ORGANIC RADICAL ARE SELECTED FORM THE GROUP CONSISTING OF MONOVALENT HYDROCARBON RADICALS AND HALOGENATED MONOVALENT HYDROCARBON RADICALS, (2) FROM 10 TO 35 PARTS BY WEIGHT OF A COPOLYMER FLUID HAVING A A VISCOSITY OF LESS THAN 1,000,000 CS. AT 25*C. AND BEING COMPOSED OF FROM 20 TO 60 MOL PERCENT DIMETHYLSILOXANE, FROM 30 TO 60 MOL PERCENT PHENYLMETHYLSILOXANE, FROM 5 TO 15 MOL PERCENT SILOXANE UNITS OF THE FORMULA
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) | 1961-01-06 | 1961-07-08 | 1962-01-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-01-06 | 1965-07-08 | 1966-01-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-01-06 | 1969-07-08 | 1970-01-07 | $7700.00 | Window Closed / Lapsed |