US3285896A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymerization of vinyl ethers
Assignee: Cabot Corp
•
Filing: 1962-09-04
•
Granted: 1966-11-15
•
Expires: 1982-09-04
Abstract
No abstract record available.
Inventors
- 👤 James C Mackenzie
- 👤 Orzechowski Adam
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 00:38
CPC Classifications
C; C08; C08F; C08F16/00; C08F16/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
25 words
A PROCESS FOR POLYMERIZING VINYL ETHERS AND MIXTURES THEREOF WHICH COMPRISES CONTACTING AT TEMPERATURES BETWEEN ABOUT -80*C. AND 190*C., A SUBSTANCE CONFORMING TO THE FORMULA
Claim 2
Dependent Claim
25 words
A PROCESS FOR POLYMERIZING VINYL ETHERS AND MIXTURES THEREOF WHICH COMPRISES CONTACTING AT TEMPERATURES BETWEEN ABOUT -80*C. AND 190*C., A SUBSTANCE CONFORMING TO THE FORMULA
References Cited (Backward Citations)
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US2932633A
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US3065220A
Cited
US3163611A
Cited
US3166542A
Cited
US3166544A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-11-14 | 1970-05-16 | 1970-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-14 | 1974-05-16 | 1974-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-14 | 1978-05-16 | 1978-11-15 | $7700.00 | Window Closed / Lapsed |