US2698314A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reaction of alkoxy silanes with silane hydrolysis products
Assignee: Ellis Foster Co
•
Filing: 1951-03-12
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Granted: 1954-12-28
•
Expires: 1971-03-12
Abstract
No abstract record available.
Inventors
- 👤 John B Rust
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 07:10
CPC Classifications
C; C08; C08G; C08G77/00; C08G77/04; C08G77/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
69 words
THE METHOD OF PRODUCING A COPOLYMER WHICH COMPRISES HEATING TOGETHER AS THE SOLE REACTANTS A HALOGEN HYDROLYZED MONOVALENT HYDROCARBON SILICON HALIDE WITH AN UNHYDROLYZED SILANE DERIVATIVE HAVING THE FORMULA R''4-X-YHYSI(OR)X WHERE R AND R'' ARE MONOVALENT HYDROCARBON GROUPS, X IS FROM 1 TO 4, Y IS FROM 0 TO 2, AND X+Y DOES NOT EXCEED 4, IN THE MOLAR RATIOS OF FROM 10;1 TO 1;10 TO FORM A COPOLYMER.
Claim 2
Independent Claim
69 words
THE METHOD OF PRODUCING A COPOLYMER WHICH COMPRISES HEATING TOGETHER AS THE SOLE REACTANTS A HALOGEN HYDROLYZED MONOVALENT HYDROCARBON SILICON HALIDE WITH AN UNHYDROLYZED SILANE DERIVATIVE HAVING THE FORMULA R''4-X-YHYSI(OR)X WHERE R AND R'' ARE MONOVALENT HYDROCARBON GROUPS, X IS FROM 1 TO 4, Y IS FROM 0 TO 2, AND X+Y DOES NOT EXCEED 4, IN THE MOLAR RATIOS OF FROM 10;1 TO 1;10 TO FORM A COPOLYMER.
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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) | 1957-12-27 | 1958-06-28 | 1958-12-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-12-27 | 1962-06-28 | 1962-12-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-12-27 | 1966-06-28 | 1966-12-28 | $7700.00 | Window Closed / Lapsed |