US2601293A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymerization initiation systems comprising a hydrazone, a peroxy compound, and cupric ion
Assignee: EIDP Inc
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Filing: 1950-04-01
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Granted: 1952-06-24
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Expires: 1970-04-01
Abstract
No abstract record available.
Inventors
- 👤 Jr Edward G Howard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:41
CPC Classifications
C; C08; C08F; C08F4/00; C08F4/28; Y; Y10; Y10S; Y10S526/00; Y10S526/915
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
38 words
IN THE ADDITION POLYMERIZATION OF A POLYMERIZABLE ETHYLENICALLY UNSATURATED MONOMER, THE IMPROVEMENT WHEREIN SAID MONOMER IS POLYMERIZED BY BRINGING THE SAME IN CONTACT WITH AN INITIATOR SYSTEM COMPRISING A HYDRAZONE, A PEROXIDE, AND A SOLUTION OF CUPRIC COPPER.
Claim 2
Dependent Claim
38 words
IN THE ADDITION POLYMERIZATION OF A POLYMERIZABLE ETHYLENICALLY UNSATURATED MONOMER, THE IMPROVEMENT WHEREIN SAID MONOMER IS POLYMERIZED BY BRINGING THE SAME IN CONTACT WITH AN INITIATOR SYSTEM COMPRISING A HYDRAZONE, A PEROXIDE, AND A SOLUTION OF CUPRIC COPPER.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-06-24 | 1955-12-24 | 1956-06-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-06-24 | 1959-12-24 | 1960-06-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-06-24 | 1963-12-24 | 1964-06-24 | $7700.00 | Window Closed / Lapsed |