Patent US3645977A successfully refreshed from Google Patents.
US3645977A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Acrylate-acrylic acid-n-vinyl urethane terpolymers
Assignee: Atlantic Richfield Co
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Filing: 1970-01-09
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Granted: 1972-02-29
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Expires: 1990-01-09
Abstract
Abstract HEAT-CURABLE TERPOLYMERS COMPRISING THE RESIDUES OF AN ACRYLATE, AN ACRYLATE ACID AND AN N-VINYL URETHANE ARE AIDES, UREAS OR MELAMINES. THESE THERMOSETTING COATINGS BAKING WITH VARIOUS CROSS-LINKING AGENTS SUCH AS EPOXIDES, UREAS OR MELAMINES. THESE THEROMOSETTING COATINGS. MAY BE INCORPORATED INTO PAINT COATNG SYSTEMS, ELECTROCOATING SYSTEMS, FIBERS AND ADHESIVES.
Inventors
- 👤 Larry G Wolgemuth
- 👤 William H Fritock
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:53
CPC Classifications
C; C09; C09D; C09D133/00; C09D133/04; C09D133/06; C09D133/062; C09D133/064; C08; C08F; C08F20/00; C08F20/62; C08F226/00; C08F226/02; C08L; C08L63/00; C09D139/00
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) | 1975-02-28 | 1975-08-30 | 1976-02-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-02-28 | 1979-08-30 | 1980-02-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-02-28 | 1983-08-30 | 1984-02-29 | $7700.00 | Window Closed / Lapsed |