Patent US3739429A successfully refreshed from Google Patents.
Patent US2576370A successfully refreshed from Google Patents.
US2576370A
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Interpolymerization
Assignee: Uniroyal Inc
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Filing: 1949-03-18
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Granted: 1951-11-27
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Expires: 1969-03-18
Abstract
No abstract record available.
Inventors
- 👤 Pliny O Tawney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 07:24
CPC Classifications
C; C08; C08F; C08F212/00; C08F212/02; C08F212/04; C08F212/06; C08F212/08; C08F222/00; C08F222/10; C09; C09D; C09D125/00; C09D125/02; C09D125/04; C09D125/08; C09D125/14; C08F222/1006; C08F222/103
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
68 words
A METHOD OF COPOLYMERIZING A CASTRO-OIL MALEATE ESTER WITH A COPOLYMERIZABLE MONOOLEFINIC COMPOUND TO FORM A SOLUBLE, CONVERTIBLE COPOLYMER, WHICH COMPRISES CARRYING OUT THE SAID COPOLYMERIZATION IN THE PRESENCE OF FROM 6 TO 120 MOLES OF A MONO-ALDEHYDE SELECTED FROM THE GROUP CONSISTING OF UNSUBSTITUTED ALIPHATIC ALDEHYDES AND ALPHA-OLEFINIC ALDEHYDES HAVING FROM 2 TO 10 CARBON ATOMS, PER MOLE OF CASTOR-OIL MALEATE, AND AN ORGANIC PEROXIDIC POLYMERIZATION CATALYST.
Claim 2
Independent Claim
68 words
A METHOD OF COPOLYMERIZING A CASTRO-OIL MALEATE ESTER WITH A COPOLYMERIZABLE MONOOLEFINIC COMPOUND TO FORM A SOLUBLE, CONVERTIBLE COPOLYMER, WHICH COMPRISES CARRYING OUT THE SAID COPOLYMERIZATION IN THE PRESENCE OF FROM 6 TO 120 MOLES OF A MONO-ALDEHYDE SELECTED FROM THE GROUP CONSISTING OF UNSUBSTITUTED ALIPHATIC ALDEHYDES AND ALPHA-OLEFINIC ALDEHYDES HAVING FROM 2 TO 10 CARBON ATOMS, PER MOLE OF CASTOR-OIL MALEATE, AND AN ORGANIC PEROXIDIC POLYMERIZATION CATALYST.
References Cited (Backward Citations)
US2252333A
Cited
US2439953A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-11-26 | 1955-05-28 | 1955-11-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-11-26 | 1959-05-28 | 1959-11-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-11-26 | 1963-05-28 | 1963-11-27 | $7700.00 | Window Closed / Lapsed |