US3328367A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Copolymers
Assignee: EIDP Inc
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Filing: 1965-04-29
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Granted: 1967-06-27
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Expires: 1985-04-29
Abstract
No abstract record available.
Inventors
- 👤 Rees Richard Watkin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 08:13
CPC Classifications
C; C08; C08F; C08F8/00; C08F8/30; C08F8/32; C08F2800/00; C08F2800/20; Y; Y10; Y10S; Y10S260/00; Y10S260/31
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
85 words
A THERMOPLASTIC COPOLYMER CONSISTING ESSENTIALLY OF FROM 0.2 TO 25 MOLE PERCENT BASED ON THE POLYMER OF AN A,B-ETHYLENICALLY UNSATURATED ACID MONOMER SELECTED FROM THE CLASS CONSISTING OF A,B-ETHYLENICALLY UNSATURATED MONO AND DICARBOXYLIC ACIDS CONTAINING FROM 3 TO 10 CARBON ATOMS, AND STYRENE SULFONIC ACID, AND THE REMAINDER PREDOMINANT MONOMER UNITS HAVING THE STRUCTURE CH2=CHR1, WHEREIN R1 IS SELECTED FROM THE GROUP CONSISTING OF AROMATIC RADICALS, ESTER RADICALS, AMIDE RADICALS, ACYLOXY RADICALS, ALKOXY RADICALS, HALOGENS, ACYL RADICALS, AND NITRILES, AND MONOMER UNITS HAVING THE STRUCTURE
Claim 2
Dependent Claim
85 words
A THERMOPLASTIC COPOLYMER CONSISTING ESSENTIALLY OF FROM 0.2 TO 25 MOLE PERCENT BASED ON THE POLYMER OF AN A,B-ETHYLENICALLY UNSATURATED ACID MONOMER SELECTED FROM THE CLASS CONSISTING OF A,B-ETHYLENICALLY UNSATURATED MONO AND DICARBOXYLIC ACIDS CONTAINING FROM 3 TO 10 CARBON ATOMS, AND STYRENE SULFONIC ACID, AND THE REMAINDER PREDOMINANT MONOMER UNITS HAVING THE STRUCTURE CH2=CHR1, WHEREIN R1 IS SELECTED FROM THE GROUP CONSISTING OF AROMATIC RADICALS, ESTER RADICALS, AMIDE RADICALS, ACYLOXY RADICALS, ALKOXY RADICALS, HALOGENS, ACYL RADICALS, AND NITRILES, AND MONOMER UNITS HAVING THE STRUCTURE
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) | 1970-06-26 | 1970-12-26 | 1971-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-06-26 | 1974-12-26 | 1975-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-06-26 | 1978-12-26 | 1979-06-27 | $7700.00 | Window Closed / Lapsed |