US3588955A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Extruding apparatus
Assignee: Individual
•
Filing: 1968-09-27
•
Granted: 1971-06-29
•
Expires: 1988-09-27
Abstract
Abstract AN APPARATUS FOR EXTRUDING THERMOPLASTIC RESINS, COMPRISING AN EXTRUDER PROVIDED WITH A HEATING ZONE FOR MELTING A THERMOPLASTIC RESIN, A FOAMING AGENT INJECTION AND DISPERSING ZONE FOR INCORPORATING THE FOAMING AGENT INTO THE MOLTEN RESIN, AND A COOLING UNIT PROVIDED AT THE FOREMOST END OF SAID EXTRUDER FOR REGULATING THE TEMPERATURE OF THE RESULTING FOAMABLE MOLTEN RESIN.
Inventors
- 👤 Kimikazu Azuma
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:03
CPC Classifications
B; B29; B29C; B29C44/00; B29C44/34; B29C44/3442; B29C48/00; B29C48/25; B29C48/36; B29C48/50; B29C48/695; B29C48/70; B29C48/03; Y; Y10; Y10S; Y10S261/00; Y10S261/26
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) | 1974-06-28 | 1974-12-28 | 1975-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-28 | 1978-12-28 | 1979-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-28 | 1982-12-28 | 1983-06-29 | $7700.00 | Window Closed / Lapsed |