US2777869A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymerization of vinylalkoxysilanes
Assignee: Union Carbide Corp
•
Filing: 1953-08-13
•
Granted: 1957-01-15
•
Expires: 1973-08-13
Abstract
No abstract record available.
Inventors
- 👤 Donald L Bailey
- 👤 Robert Y Mixer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:55
CPC Classifications
C; C08; C08F; C08F130/00; C08F130/04; C08F130/08
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
14 words
PROCESS FOR MAKING HOMOPOLYMERS OF VINYLALKOXYSILANES WHICH COMPRISES HEATING A SILANE OF THE STRUCTURE-
Claim 2
Dependent Claim
14 words
PROCESS FOR MAKING HOMOPOLYMERS OF VINYLALKOXYSILANES WHICH COMPRISES HEATING A SILANE OF THE STRUCTURE-
Claim 3
Dependent Claim
34 words
HOMPOLYMERS OF MONOVINYLALKOXYSILANES POLYMERIZED THROUGH THE VINYL GROUP, SAID HOMOPOLYMERS BEING COLORLESS TO LIGHT-COLORED VISCOUS LIQUIDS HAVING A VISCOSITY OF ABOUT 1000 CS. TO ABOUT 67,000CS. AT 25*C., AND SAID MONOVINYLALKOXYSILANES HAVING THE STRUCTURE-
Claim 4
Dependent Claim
34 words
HOMPOLYMERS OF MONOVINYLALKOXYSILANES POLYMERIZED THROUGH THE VINYL GROUP, SAID HOMOPOLYMERS BEING COLORLESS TO LIGHT-COLORED VISCOUS LIQUIDS HAVING A VISCOSITY OF ABOUT 1000 CS. TO ABOUT 67,000CS. AT 25*C., AND SAID MONOVINYLALKOXYSILANES HAVING THE STRUCTURE-
References Cited (Backward Citations)
US2532583A
Cited
GB684597A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-01-15 | 1960-07-16 | 1961-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-01-15 | 1964-07-16 | 1965-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-01-15 | 1968-07-16 | 1969-01-15 | $7700.00 | Window Closed / Lapsed |