Patent US3274647A successfully refreshed from Google Patents.
US3274647A
Expired / Lapsed
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Extrusion machines for plastic material
Assignee: Andouart SA
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Filing: 1964-06-19
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Granted: 1966-09-27
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Expires: 1984-06-19
Abstract
No abstract record available.
Inventors
- 👤 Andouart Leon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:05
CPC Classifications
B; B29; B29C; B29C48/00; B29C48/25; B29C48/36; B29C48/375; B29C48/38; B29C48/03
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
71 words
IN AN EXTRUSION MACHINE FOR THE MANUFACTURE OF OBJECTS OF PLASTIC MATERIAL FROM POWDER, COMPRISING A VERTICAL SCREW THAT FEEDS DOWNWARDLY TO A HORIZONTAL SCREW, THE IMPROVEMENT COMPRISING HEATING MEANS FOR SAID VERTICAL SCREW TO THAT A MONOMERIC PLASTIC POWDER MAY BE TRANSFORMED TO A JELLY DURING PASSAGE ALONG SAID VERTICAL SCREW, DRIVE MEANS FOR SAID VERTICAL SCREW CONNECTED TO THE LOWER EXTREMITY OF SAID VERTICAL SCREW, AND A SUPPPLY HOPPER
Claim 2
Dependent Claim
71 words
IN AN EXTRUSION MACHINE FOR THE MANUFACTURE OF OBJECTS OF PLASTIC MATERIAL FROM POWDER, COMPRISING A VERTICAL SCREW THAT FEEDS DOWNWARDLY TO A HORIZONTAL SCREW, THE IMPROVEMENT COMPRISING HEATING MEANS FOR SAID VERTICAL SCREW TO THAT A MONOMERIC PLASTIC POWDER MAY BE TRANSFORMED TO A JELLY DURING PASSAGE ALONG SAID VERTICAL SCREW, DRIVE MEANS FOR SAID VERTICAL SCREW CONNECTED TO THE LOWER EXTREMITY OF SAID VERTICAL SCREW, AND A SUPPPLY HOPPER
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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) | 1969-09-26 | 1970-03-28 | 1970-09-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-26 | 1974-03-28 | 1974-09-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-26 | 1978-03-28 | 1978-09-27 | $7700.00 | Window Closed / Lapsed |