US3658748A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Molding composition and method
Assignee: Monsanto Co
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Filing: 1970-03-09
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Granted: 1972-04-25
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Expires: 1990-03-09
Abstract
Abstract A MOLDING COMPOSITION COMPRISING GRAINS EACH CONTAINING A PLURALITY OF REINFORCING FIBERS IN PARALLEL ARRANGEMENT AND EMBEDDED IN AND BONDED TOGETHER BY A THERMOSETTABLE RESIN WHCIH ALSO ENVELOPES SAID PLURALITY OF BONDED FIBERS; THE METHOD OF PREPARING THE COMPOSITON BY CONTACTING AN AQUEOUS SLURRY OF THE FIBERS WITH A LIQUID, THERMOSETTABLE, RESIN AND A CURING AGENT THEREFOR, ADVANCING THE RESIN TO A SOLID, FUSIBLE STAGE, AND RECOVERING SAID COMPOSITION FROM THE RESULTING REACTION MIXTURE; THE HEATCURABLE EXTRUDATED OBTAINED FROM SAID COMPOSTION, AND THE METHOD OF PREPARING THE EXTRUDATE.
Inventors
- 👤 Harry M Andersen
- 👤 John D Calfee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:52
CPC Classifications
C; C08; C08J; C08J3/00; C08J3/20; C08J3/205; C08J3/2053; C08J3/2056; B; B29; B29B; B29B9/00; B29B9/12; B29B9/14; C08J3/12; C08J5/00; C08J5/24; C08J5/241; C08J5/242; C08J5/243; C08J5/244; C08J5/247; C08J5/249; C08J2363/00
Claims Analysis
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-04-25 | 1975-10-25 | 1976-04-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-04-25 | 1979-10-25 | 1980-04-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-04-25 | 1983-10-25 | 1984-04-25 | $7700.00 | Window Closed / Lapsed |