US3356637A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vinyl chloride interpolymers and process
Assignee: Monsanto Co
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Filing: 1963-05-27
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Granted: 1967-12-05
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Expires: 1983-05-27
Abstract
No abstract record available.
Inventors
- 👤 Robert J Slocombe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 04:26
CPC Classifications
C; C08; C08F; C08F214/00; C08F214/02; C08F214/04; C08F214/06; C08F222/00; C08F222/10; C08F222/12; C08F222/20
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
39 words
AN INTERPOLYMER OF VINYL CHLORIDE AND DIESTER OF FUMARIC ACID IN WHICH THE ESTERIFYING RADICALS ARE HYDROXY(OXA) HYDROCARBYL GROUPS AND IN WHICH FROM ABOUT 2% TO ABOUT 75% BY WEIGHT OF THE SAID INTERPOLYMER IS FROM THE SAID DIESTER.
Claim 2
Dependent Claim
39 words
AN INTERPOLYMER OF VINYL CHLORIDE AND DIESTER OF FUMARIC ACID IN WHICH THE ESTERIFYING RADICALS ARE HYDROXY(OXA) HYDROCARBYL GROUPS AND IN WHICH FROM ABOUT 2% TO ABOUT 75% BY WEIGHT OF THE SAID INTERPOLYMER IS FROM THE SAID DIESTER.
Claim 3
Dependent Claim
52 words
A SOLUTION CONTAINING INTERPOLYMER AND MONOCYCLIC AROMATIC HYDROCARBON SOLVENT, THE INTERPOLYMER CONSTITUTING AT LEAST 30% BY WEIGHT OF THE SOLUTION AND BEING AN INTERPOLYMER OF VINYL CHLORIDE AND BIS(HYDROXYALKYL) FUMARATE AND HAVING A MOLECULAR WEIGHT IN THE RANGE OF 1000 TO 10,000 AND A HYDROXYL CONTENT OF 1% TO 4% BY WEIGHT.
Claim 4
Dependent Claim
52 words
A SOLUTION CONTAINING INTERPOLYMER AND MONOCYCLIC AROMATIC HYDROCARBON SOLVENT, THE INTERPOLYMER CONSTITUTING AT LEAST 30% BY WEIGHT OF THE SOLUTION AND BEING AN INTERPOLYMER OF VINYL CHLORIDE AND BIS(HYDROXYALKYL) FUMARATE AND HAVING A MOLECULAR WEIGHT IN THE RANGE OF 1000 TO 10,000 AND A HYDROXYL CONTENT OF 1% TO 4% BY WEIGHT.
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) | 1970-12-04 | 1971-06-05 | 1971-12-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-12-04 | 1975-06-05 | 1975-12-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-12-04 | 1979-06-05 | 1979-12-05 | $7700.00 | Window Closed / Lapsed |