US2647080A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Light-stabilized photopolymerization of acrylic esters
Assignee: EIDP Inc
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Filing: 1950-06-30
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Granted: 1953-07-28
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Expires: 1970-06-30
Abstract
No abstract record available.
Inventors
- 👤 Robert M Joyce
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 02:24
CPC Classifications
C; C08; C08F; C08F220/00; C08F220/02; C08F220/10; C08F220/12
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
49 words
A PROCESS FOR THE PREPARATION OF A LIGHTSTABLE POLYMER WHICH COMPRISES PHOTOPOLYMERIZING A HALOGEN-FREE ESTER OF AN ACID FROM THE GROUP CONSISTING OF ACRYLIC ACID AND ALPHA-ALKYLACRYLIC ACIDS WITH A POLYMERIZATION INITIATOR OF THE GROUP CONSISTING OF ACYLOINS AND ACYLOIN ETHER WITH ALLYL GLYCIDYL ETHER AS THE LIGHT-STABILIZING AGENT.
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) | 1956-07-27 | 1957-01-26 | 1957-07-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-07-27 | 1961-01-26 | 1961-07-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-07-27 | 1965-01-26 | 1965-07-28 | $7700.00 | Window Closed / Lapsed |