Patent US2928804A successfully refreshed from Google Patents.
US2928804A
Expired / Lapsed
US
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Process for curing polymerizable esters in presence of organic hydroperoxide and metallic driers
Assignee: Imperial Chemical Industries Ltd
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Filing: 1955-09-19
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Granted: 1960-03-15
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Expires: 1975-09-19
Abstract
No abstract record available.
Inventors
- 👤 Foster Geoffrey Lambsin
- 👤 Nicks Peter Francis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 12:03
CPC Classifications
C; C08; C08F; C08F283/00; C08F283/01; C08F20/00; C08F20/02; C08F20/10; C08F20/12; C08F20/16
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
12 words
IN A PROCESS FOR CURING A POLYMERIZABLE ESTER HAVING THE GENERAL FORMULA
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) | 1963-03-15 | 1963-09-14 | 1964-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-03-15 | 1967-09-14 | 1968-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-03-15 | 1971-09-14 | 1972-03-15 | $7700.00 | Window Closed / Lapsed |