Patent US2500265A successfully refreshed from Google Patents.
US2500265A
Expired / Lapsed
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Polymerization of unsaturated esters of acrylic and methacrylic acids
Assignee: Uniroyal Inc
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Filing: 1946-06-27
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Granted: 1950-03-14
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Expires: 1966-06-27
Abstract
No abstract record available.
Inventors
- 👤 Cheves T Walling
- 👤 Robert H Snyder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:09
CPC Classifications
C; C08; C08F; C08F20/00; C08F20/02; C08F20/10; C08F20/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
68 words
A POLYMERIZABLE MIX COMPRISING A MONOMERIC NON-ACIDIC POLYUNSATURATED ORGANIC COMPOUND CONTAINING THE GROUP CH2=C(R)-COAND AT LEAST ONE ADDITIONAL UNCONJUGATED ALIPHATIC DOUBLE BOND R BEING FROM THE CLASS CONSISTING OF HYDROGEN AND ALKYL AND A CATALYTIC AMOUNT OF A CATALYST OF POLYMERIZATION SELECTED FROM THE CLASS CONSISTING OF ALKALI METAL, ALKALI METAL ALKYLS, AND ALKALI METAL HYDRIDES THE ALKALI-METAL BEING SELECTED FROM THE CLASS CONSISTING OF SODIUM AND POTASSIUM.
Claim 2
Dependent Claim
68 words
A POLYMERIZABLE MIX COMPRISING A MONOMERIC NON-ACIDIC POLYUNSATURATED ORGANIC COMPOUND CONTAINING THE GROUP CH2=C(R)-COAND AT LEAST ONE ADDITIONAL UNCONJUGATED ALIPHATIC DOUBLE BOND R BEING FROM THE CLASS CONSISTING OF HYDROGEN AND ALKYL AND A CATALYTIC AMOUNT OF A CATALYST OF POLYMERIZATION SELECTED FROM THE CLASS CONSISTING OF ALKALI METAL, ALKALI METAL ALKYLS, AND ALKALI METAL HYDRIDES THE ALKALI-METAL BEING SELECTED FROM THE CLASS CONSISTING OF SODIUM AND POTASSIUM.
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) | 1953-03-13 | 1953-09-12 | 1954-03-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-03-13 | 1957-09-12 | 1958-03-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-03-13 | 1961-09-12 | 1962-03-14 | $7700.00 | Window Closed / Lapsed |