US3784496A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rubber and amine modified phenolic resins
Assignee: Dow Chemical Co
•
Filing: 1972-02-24
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Granted: 1974-01-08
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Expires: 1992-02-24
Abstract
Abstract PHENOLIC RESIN ADHESIVES HAVING IMPROVED IMPACT STRENGTH ARE OBTAINED BY REACTING A PHENOLIC-ALDEHYDE RESOLE WITH A BUTADIENE RUBBER OR RUBBER LATEX AND AR-HYDROXYANILINE OR A MIXTURE OF HYDROXYANILINE WITH ANILINE OR A SUBSTITUTED ANILINE.
Inventors
- 👤 H Smith
- 👤 E Kobel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 13:18
CPC Classifications
C; C08; C08G; C08G8/00; C08G8/38; C08G14/00; C08G14/14; C08G8/28
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) | 1977-01-07 | 1977-07-09 | 1978-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-01-07 | 1981-07-09 | 1982-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-01-07 | 1985-07-09 | 1986-01-08 | $7700.00 | Window Closed / Lapsed |