Patent US3960388A successfully refreshed from Google Patents.
Patent US3681286A successfully refreshed from Google Patents.
US3681286A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fiber glass laminates containing furfuryl resin binder
Assignee: Qo Chemicals Inc
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Filing: 1970-11-23
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Granted: 1972-08-01
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Expires: 1990-11-23
Abstract
Abstract GLASS FIBERS ARE BOUND WITH A FURFURYL ALCOHOL-FORMALDEHYDE RESIN IN A BINDER CONTAINING FURFURAL, A HIGH CATALYST LEVEL, AND A SILANE. THE RESULTING ARTICLE IS CURED AT TEMPERATURES BELOW 100*C.
Inventors
- 👤 Lloyd H Brown
- 👤 David D Watson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 08:26
CPC Classifications
C; C03; C03C; C03C25/00; C03C25/10; C03C25/24; C03C25/26; C08; C08J; C08J5/00; C08J5/24; C08J5/241; C08J5/244; C08J5/249; C08L; C08L61/00; C08J2361/00
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) | 1975-08-01 | 1976-01-31 | 1976-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-01 | 1980-01-31 | 1980-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-01 | 1984-01-31 | 1984-08-01 | $7700.00 | Window Closed / Lapsed |