US2984656A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymerization of vinyl alkyl ethers
Assignee: Goodyear Tire and Rubber Co
•
Filing: 1958-03-25
•
Granted: 1961-05-16
•
Expires: 1978-03-25
Abstract
No abstract record available.
Inventors
- 👤 Lal Joginder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 12:32
CPC Classifications
C; C08; C08F; C08F16/00; C08F16/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
43 words
A PROCESS OF POLYMERIZING VINYL ALKYL ETHERS TO FORM HIGH MOLECULAR WEIGHT POLYMERS WHICH COMPRISES CARRYING OUT THE POLYMERIZATION OF SAID VINYL ALKYL ETHERS IN THE PRESENCE OF A CATALYTIC AMOUNT OF A HYDRATE OF FERRIC HYDROSULFATE CORRESPONDING TO AN OVERALL COMPOSITION OF
Claim 2
Dependent Claim
43 words
A PROCESS OF POLYMERIZING VINYL ALKYL ETHERS TO FORM HIGH MOLECULAR WEIGHT POLYMERS WHICH COMPRISES CARRYING OUT THE POLYMERIZATION OF SAID VINYL ALKYL ETHERS IN THE PRESENCE OF A CATALYTIC AMOUNT OF A HYDRATE OF FERRIC HYDROSULFATE CORRESPONDING TO AN OVERALL COMPOSITION OF
References Cited (Backward Citations)
US2549921A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-05-15 | 1964-11-14 | 1965-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-15 | 1968-11-14 | 1969-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-15 | 1972-11-14 | 1973-05-16 | $7700.00 | Window Closed / Lapsed |