US3257360A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Terpolymers and processes for making same
Assignee: Monsanto Co
•
Filing: 1961-07-27
•
Granted: 1966-06-21
•
Expires: 1981-07-27
Abstract
No abstract record available.
Inventors
- 👤 Robert J Slocombe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 11:12
CPC Classifications
C; C08; C08F; C08F214/00; C08F214/02; C08F214/04; C08F214/06; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/40; C08G18/62; C08G18/6212
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
30 words
THE METHOD OF PREPARING A FUNCTIONAL VINYL CHLORIDE TERPOLYMER HAVING REACTABLE PRIMARY HYDROXY GROUPS WHICH METHOD COMPRISES COPOLMERIZING VINYL CHLORIDE, VINYLOXYETHANOL AND A MONOOLEFINICALLY UNSATURATED FUMARIC ESTER OF THE FORMULA:
Claim 2
Independent Claim
30 words
THE METHOD OF PREPARING A FUNCTIONAL VINYL CHLORIDE TERPOLYMER HAVING REACTABLE PRIMARY HYDROXY GROUPS WHICH METHOD COMPRISES COPOLMERIZING VINYL CHLORIDE, VINYLOXYETHANOL AND A MONOOLEFINICALLY UNSATURATED FUMARIC ESTER OF THE FORMULA:
References Cited (Backward Citations)
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US2563459A
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US2534108A
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US2637712A
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US2780567A
Cited
US2828220A
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US2950262A
Cited
US2956031A
Cited
US3017396A
Cited
US3027358A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-06-20 | 1969-12-20 | 1970-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-06-20 | 1973-12-20 | 1974-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-06-20 | 1977-12-20 | 1978-06-21 | $7700.00 | Window Closed / Lapsed |