US3708456A
Expired / Lapsed
US
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Polycondensate reinforcement process using an interfacial-forming technique
Assignee: Monsanto Co
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Filing: 1970-09-18
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Granted: 1973-01-02
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Expires: 1990-09-18
Abstract
Abstract THE APPLICATION PROVIDES THE PROCESS OF PREPARING FIBERREINFORCED CONDENDATION POLYMERS WHICH COMPRISES CONDUCTING AN INTERFACIAL POLYCONDENSATION, WITHOUT SUBSTANTIAL STIRRING, IN THE PRESENCE OF DISCONTINUOUS, INORGANIC REINFORCING FIBER DISPERSED IN THE PHASE THROUGH WHICH THE INTERFACIAL FILM OF POLYCONDENSATE IS WITHDRAWN FROM THE REACTION ZONE.
Inventors
- 👤 J Kardos
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 18:58
CPC Classifications
C; C08; C08J; C08J5/00; C08J5/04
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) | 1976-01-02 | 1976-07-03 | 1977-01-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-01-02 | 1980-07-03 | 1981-01-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-01-02 | 1984-07-03 | 1985-01-02 | $7700.00 | Window Closed / Lapsed |