US3558583A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Extrusion resin
Assignee: EIDP Inc
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Filing: 1967-09-13
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Granted: 1971-01-26
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Expires: 1987-09-13
Abstract
Abstract THE MOLDING RATE AND THE STRENGTH OF MOLDING OF FLUOROCARON RESINS, E.G. POLYTETRAFLUOROETHYLENE, ARE IMPROVED BY PARTIALLY SINTERING THE RESINS (10-50%) BY HEATING THE RESINS AT A TEMPERATURE IN THE RANGE 332338*C.
Inventors
- 👤 Richard G Alsup
- 👤 John A Ross
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 09:28
CPC Classifications
C; C08; C08L; C08L27/00; C08L27/02; C08L27/12; B; B29; B29B; B29B13/00; B29B13/007; B29C; B29C43/00; B29C43/006; B29C48/00; B29C48/022; C08F; C08F8/00; C08F8/50; B29C48/03; B29C48/04; B29K; B29K2027/00; B29K2027/12; B29K2027/18; C08F2810/00; C08F2810/10
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) | 1974-01-25 | 1974-07-27 | 1975-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-25 | 1978-07-27 | 1979-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-25 | 1982-07-27 | 1983-01-26 | $7700.00 | Window Closed / Lapsed |