Patent EP0298235B1 successfully refreshed from Google Patents.
US2800494A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Unsaturated fluorocarbon silanes and their hydrolysis products
Assignee: Dow Silicones Corp
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Filing: 1954-10-22
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Granted: 1957-07-23
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Expires: 1974-10-22
Abstract
No abstract record available.
Inventors
- 👤 Loren A Haluska
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:34
CPC Classifications
H; H01; H01B; H01B3/00; H01B3/18; H01B3/30; H01B3/46; C; C07; C07F; C07F7/00; C07F7/02; C07F7/08; C07F7/0834; C07F7/0838; C07F7/12; C08; C08G; C08G77/00; C08G77/04; C08G77/22; C08G77/24
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
7 words
A COMPOSITION OF MATTER HAVING THE FORMULA
Claim 2
Dependent Claim
7 words
A COMPOSITION OF MATTER HAVING THE FORMULA
Claim 3
Dependent Claim
159 words
A SILOXANE COMPOSED OF SILICON ATOMS LINKED THROUGH OXYGEN ATOMS, SOME OF THE SILICON ATOMS HAVING AT LEAST ONE AND NOT MORE THAN TWO FLUOROCARBON RADICALS OF THE FORMULA CAXBF2-B-C IN WHICH THE FLORINATED RADICALS CONTAIN AT LEAST 22 FLORINE ATOMS AND ARE SELECTED FROM THE GROUP CONSISTING OF UNSATURATED LINEAR FLUORINATED RADICALS IN WHICH C IS 1 AND UNSATURATED CYCLIC FLORINATED RADICALS IN WHICH C IS 3 AND IN WHICH FLUORINATED RADICALS A IS AN INTEGER OF AT LEAST 2,X IS SELECTED FROM THE GROUP CONSISTING OF CHLORINE AND HYDROGEN, B HAS A VALUE FROM 0-1 INCLUSIVE AND SAID RADICALS BEING LINKED TO THE SILICON ATOMS THROUGH SI-C BONDS, ANY REMAINING VALENCE OF THE SILICON ATOMS IN SAID SILOXANE BEING SATISFIED BY RADICALS OF THE GROUP CONSISTING OF MONOVALENT HYDROCARBON RADICALS AND HYDROGEN ATOMS AND IN SAID SILOXANE THE TOTAL NUMBER OF FLUOROCARBON AND MONOVALENT HYDROCARBON RADICALS BEING ON THE AVERAGE FROM .5 TO 3 PER SILICON ATOM.
Claim 4
Dependent Claim
159 words
A SILOXANE COMPOSED OF SILICON ATOMS LINKED THROUGH OXYGEN ATOMS, SOME OF THE SILICON ATOMS HAVING AT LEAST ONE AND NOT MORE THAN TWO FLUOROCARBON RADICALS OF THE FORMULA CAXBF2-B-C IN WHICH THE FLORINATED RADICALS CONTAIN AT LEAST 22 FLORINE ATOMS AND ARE SELECTED FROM THE GROUP CONSISTING OF UNSATURATED LINEAR FLUORINATED RADICALS IN WHICH C IS 1 AND UNSATURATED CYCLIC FLORINATED RADICALS IN WHICH C IS 3 AND IN WHICH FLUORINATED RADICALS A IS AN INTEGER OF AT LEAST 2,X IS SELECTED FROM THE GROUP CONSISTING OF CHLORINE AND HYDROGEN, B HAS A VALUE FROM 0-1 INCLUSIVE AND SAID RADICALS BEING LINKED TO THE SILICON ATOMS THROUGH SI-C BONDS, ANY REMAINING VALENCE OF THE SILICON ATOMS IN SAID SILOXANE BEING SATISFIED BY RADICALS OF THE GROUP CONSISTING OF MONOVALENT HYDROCARBON RADICALS AND HYDROGEN ATOMS AND IN SAID SILOXANE THE TOTAL NUMBER OF FLUOROCARBON AND MONOVALENT HYDROCARBON RADICALS BEING ON THE AVERAGE FROM .5 TO 3 PER SILICON ATOM.
References Cited (Backward Citations)
FR961878A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-07-22 | 1961-01-21 | 1961-07-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-07-22 | 1965-01-21 | 1965-07-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-07-22 | 1969-01-21 | 1969-07-23 | $7700.00 | Window Closed / Lapsed |