Patent US3664191A successfully refreshed from Google Patents.
Patent US3732190A successfully refreshed from Google Patents.
US3732190A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-crosslinkable copolymers
Assignee: Bayer AG
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Filing: 1971-09-22
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Granted: 1973-05-08
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Expires: 1991-09-22
Abstract
Abstract SELF-CROSSLINKABLE COPOLYMERS CONSISTING OF COPOLYMERIZED UNITS OF (A) AN A-HALOGENOALKYL ESTER, (B) ONE OR MORE COPOLYMERIZABLE MONOMERS WHICH MAY BE AN ESTER OF ACRYLIC ACID OR METHACRYLIC ACID OR A CONJUGATED DIENE, (C) ONE OR MORE OLEFINICALLY UNSATURATED COMPOUNDS WHICH ARE FREE OF CARBOXYL, HYDROXYL, AMINO AND CARBOXYLIC ACID AMIDE GROUPS AND WHICH ARE DIFFERENT FROM THE MONOMERS OF (B) AND (D) ONE OR MORE OLEFINICALLY UNSATURATED COMPOUNDS CONTAINING AT LEAST ONE CARBOXYLIC, HYDROXYL, AMINO OR CARBOXYLIC ACID AMIDE GROUP AND PROCESS OF CROSSLINKING THE SAME WHICH COMPRISES ELIMINATION OF HYDROGEN HALIDE AT A PH OF AT LEAST 7 AND A TEMPERATURE OF 0 TO 250*C.
Inventors
- 👤 G Balle
- 👤 G Kolb
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 14:01
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/21; D06M15/263; D06M15/267; C; C08; C08F; C08F8/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-05-07 | 1976-11-06 | 1977-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-05-07 | 1980-11-06 | 1981-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-05-07 | 1984-11-06 | 1985-05-08 | $7700.00 | Window Closed / Lapsed |