Patent US3437643A successfully refreshed from Google Patents.
US3437643A
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Unsaturated dicarboxylic acid half ester resin composition
Assignee: Dow Chemical Co
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Filing: 1965-03-19
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Granted: 1969-04-08
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Expires: 1985-03-19
Abstract
No abstract record available.
Inventors
- 👤 Robert L Zimmerman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:20
CPC Classifications
C; C08; C08L; C08L63/00; C08F; C08F212/00; C08F212/02; C08F212/04; C08F22/00; C08F222/00; C08F222/10; C08F222/12; C08F222/16; C08F222/165; C08F8/00; C08G; C08G63/00; C08G63/02; C08G63/12; C08G63/40; C08G63/42; C08L35/00; C08L35/06; C09; C09D; C09D135/00; C09D135/06; C09D137/00; C09D163/00; C08L71/00; C08L71/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2537016A
Cited
US2912413A
Cited
DE1024238B
Cited
US3004958A
Cited
US2954358A
Cited
US3207718A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-04-07 | 1972-10-07 | 1973-04-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-04-07 | 1976-10-07 | 1977-04-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-04-07 | 1980-10-07 | 1981-04-08 | $7700.00 | Window Closed / Lapsed |