US2817651A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Soluble copolymers
Assignee: Monsanto Chemicals Ltd
•
Filing: 1955-01-17
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Granted: 1957-12-24
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Expires: 1975-01-17
Abstract
No abstract record available.
Inventors
- 👤 Earl C Chapin
- 👤 Richard F Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 06:17
CPC Classifications
C; C08; C08F; C08F220/00; C08F220/02; C08F220/10; C08F220/12; C08F16/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
77 words
AN ORGANIC SOLVENT-SOLUBLE BINARY COPOLYMER OF AN UNSATURATED ALCOHOL AND AN ACRYLIC ESTER, THE UNSATURATED ALCOHOL CONSTITUTING FROM 1-40% BY WEIGHT OF THE COPOLYMER, SAID UNSATURATED ALCOHOL BEING TAKEN FROM THE GROUP CONSISTING OF ALLYL ALCOHOL, METHALLYL ALCOHOL AND MIXTURES THEREOF AND SAID ACRYLIC ESTER BEING A MEMBER OF THE GROUP CONSISTING OF ALKYL ESTERS OF ACRYLIC AND ALKYL ESTERS OF METHACRYLIC ACIDS AND MIXTURES THEREOF, THE ALKYL GROUPS IN SAID ESTERS CONTAINING FROM 1-4 CARBON ATOMS.
Claim 2
Dependent Claim
77 words
AN ORGANIC SOLVENT-SOLUBLE BINARY COPOLYMER OF AN UNSATURATED ALCOHOL AND AN ACRYLIC ESTER, THE UNSATURATED ALCOHOL CONSTITUTING FROM 1-40% BY WEIGHT OF THE COPOLYMER, SAID UNSATURATED ALCOHOL BEING TAKEN FROM THE GROUP CONSISTING OF ALLYL ALCOHOL, METHALLYL ALCOHOL AND MIXTURES THEREOF AND SAID ACRYLIC ESTER BEING A MEMBER OF THE GROUP CONSISTING OF ALKYL ESTERS OF ACRYLIC AND ALKYL ESTERS OF METHACRYLIC ACIDS AND MIXTURES THEREOF, THE ALKYL GROUPS IN SAID ESTERS CONTAINING FROM 1-4 CARBON ATOMS.
References Cited (Backward Citations)
US2234829A
Cited
US2441515A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-12-23 | 1961-06-24 | 1961-12-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-12-23 | 1965-06-24 | 1965-12-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-12-23 | 1969-06-24 | 1969-12-24 | $7700.00 | Window Closed / Lapsed |