Patent US3793286A successfully refreshed from Google Patents.
US3793286A
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Resin system based on furfuryl alcohol and halomethylated phenolics
Assignee: SCHENECTADY CHEM INC US
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Filing: 1971-11-18
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Granted: 1974-02-19
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Expires: 1991-11-18
Abstract
Abstract HIGHLY HALOMETHYLATED HEAT REACTIVE PHENOLS ARE EMPLOYED AS HARDNERS FOR FURFURYL ALCOHOL RESINS. THE FURFURYL ALCOHOL CAN BE MODIFIED BY UREA OR PHENOL-FORMALDEHYDE RESINS. THE PRODUCTS ARE USEFUL AS BINDERS IN THE FOUNDRY INDUSTRY.
Inventors
- 👤 J Sullivan
- 👤 K Petersen
- 👤 L Bowers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 06:50
CPC Classifications
C; C08; C08L; C08L71/00; C08L71/08; C08L71/14; B; B22; B22C; B22C1/00; B22C1/16; B22C1/20; B22C1/22; B22C1/2233; B22C1/224
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) | 1977-02-18 | 1977-08-20 | 1978-02-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-02-18 | 1981-08-20 | 1982-02-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-02-18 | 1985-08-20 | 1986-02-19 | $7700.00 | Window Closed / Lapsed |