US3448073A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vinyl polymerization process
Assignee: Monsanto Co
•
Filing: 1966-02-17
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Granted: 1969-06-03
•
Expires: 1986-02-17
Abstract
No abstract record available.
Inventors
- 👤 Robert J Mcmanimie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 18:50
CPC Classifications
C; C08; C08F; C08F4/00; C08F36/00; C08F36/02; C08F36/04; C08F4/40
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
41 words
A PROCESS FOR POLYMERIZING ETHYLENICALLY UNSATURATED MONOMERS BY A FREE RADICAL MECHANISM COMPRISING (A) MIXING TOGETHER AN ETHYLENICALLY UNSATURATED MONOMER CAPABLE OF FREE-RADICAL POLYMERIZATION, A POLYMERIZATION CATALYST CAPABLE OF DECOMPOSING TO FORM FREE RADICALS, AND AN ACCELERATOR SUBSTANCE OF THE FORMULA
Claim 2
Dependent Claim
41 words
A PROCESS FOR POLYMERIZING ETHYLENICALLY UNSATURATED MONOMERS BY A FREE RADICAL MECHANISM COMPRISING (A) MIXING TOGETHER AN ETHYLENICALLY UNSATURATED MONOMER CAPABLE OF FREE-RADICAL POLYMERIZATION, A POLYMERIZATION CATALYST CAPABLE OF DECOMPOSING TO FORM FREE RADICALS, AND AN ACCELERATOR SUBSTANCE OF THE FORMULA
References Cited (Backward Citations)
US3255164A
Cited
US3265675A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-06-02 | 1972-12-02 | 1973-06-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-02 | 1976-12-02 | 1977-06-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-02 | 1980-12-02 | 1981-06-03 | $7700.00 | Window Closed / Lapsed |