US3611489A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Disk extruder for processing plastics
Assignee: Individual
•
Filing: 1969-05-06
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Granted: 1971-10-12
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Expires: 1989-05-06
Abstract
Abstract AN EXTRUDER FOR PROCESSING PLASTIC IN WHICH A FIXED DISK HAVING A FEED THROAT IS PROVIDED WITH A CENTRALLY DISPOSED OUTLET FOR PROCESSED MATERIALS AND A ROTATING DISK LOCATED WITHIN THE FIXED DISK CORES THEREWITH TO DEFINE AN INNER CAVITY. THE FIXED DISK IS FORMED WITH AT LEAST ONE THROUGHHOLE COMMUNICATING WITH THE INNER CAVITY AND THROUGH WHICH GASEOUS SUBSTANCES EVOLVED FROM THE MATERIAL UNDERGOING PROCESSING ARE DISCHARGED.
Inventors
- 👤 Vladimir Ivanovich Morozov
- 👤 Viktor Fedorovich Prygunov
- 👤 Viktor Mikhailovich Khanov
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:38
CPC Classifications
B; B29; B29C; B29C48/00; B29C48/25; B29C48/36; B29C48/47; B29C48/03
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) | 1974-10-11 | 1975-04-12 | 1975-10-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-10-11 | 1979-04-12 | 1979-10-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-10-11 | 1983-04-12 | 1983-10-12 | $7700.00 | Window Closed / Lapsed |