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Patent US3169752A successfully refreshed from Google Patents.
US3169752A
Expired / Lapsed
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Homogenizing device for extruding or injecting machines in the treatment of thermoplastics
Assignee: PLASTUS S A SA
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Filing: 1961-08-21
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Granted: 1965-02-16
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Expires: 1981-08-21
Abstract
No abstract record available.
Inventors
- 👤 Leonce Marie Henri K Laubarede
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:49
CPC Classifications
B; B29; B29B; B29B7/00; B29B7/30; B29B7/34; B29B7/38; B29B7/40; B29B7/42; B29B7/422; B29C; B29C48/00; B29C48/25; B29C48/36; B29C48/50; B29C48/68; B29C48/685; B29C48/687; B29C48/03
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
50 words
IN A DEVICE FOR HOMOGENIZING PLASTIC MATERIAL COMPRISING AN INTERNALLY CYLINDRICAL CASING, AND AN ELONGATED MEMBER MOUNTED AXIALLY OF SAID CASING FOR ROTATION THEREWITHIN SAID ELONGATED MEMBER BEING PROVIDED WITH A PLURALITY OF PARALLEL ANNULAR RIBS BRUSHING THE INTERNAL WALL OF SAID CASING, AND SAID RIBS BEING INTERRUPTED BY HEL-
Claim 2
Dependent Claim
50 words
IN A DEVICE FOR HOMOGENIZING PLASTIC MATERIAL COMPRISING AN INTERNALLY CYLINDRICAL CASING, AND AN ELONGATED MEMBER MOUNTED AXIALLY OF SAID CASING FOR ROTATION THEREWITHIN SAID ELONGATED MEMBER BEING PROVIDED WITH A PLURALITY OF PARALLEL ANNULAR RIBS BRUSHING THE INTERNAL WALL OF SAID CASING, AND SAID RIBS BEING INTERRUPTED BY HEL-
References Cited (Backward Citations)
US1935050A
Cited
US2813302A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-02-16 | 1968-08-17 | 1969-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-02-16 | 1972-08-17 | 1973-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-02-16 | 1976-08-17 | 1977-02-16 | $7700.00 | Window Closed / Lapsed |