US2987766A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for shaping high molecular weight thermoplastics
Assignee: Honeywell International Inc
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Filing: 1958-11-10
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Granted: 1961-06-13
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Expires: 1978-11-10
Abstract
No abstract record available.
Inventors
- 👤 Porter Frank
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:22
CPC Classifications
B; B29; B29C; B29C48/00; B29C48/25; B29C48/30; B29C48/32; B29C48/34; B29C48/03; B29C48/09
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
102 words
A DIE FOR EXTRUSION OF PIPE AND LIKE PROFILED SHAPES OF HIGH MOLECULAR WEIGHT, HEAT DEPOLYMERIZABLE THERMOPLASTIC POLYMER WHICH COMPRISES IN COMBINATION, A HEAD CAVITY, A CORE MEMBER, A FEED INLET ENTERING SAID HEAD CAVITY AT ONE SIDE AND AT AN ANGLE TO THE LONGITUDINAL AXIS OF THE CORE MEMBER, A SHAPING CAVITY DOWNSTREAM FROM THE FEED INLET, AND A DISTRIBUTING PLATE PERPENDICULAR TO THE LONGITUDINAL AXIS OF THE CORE MEMBER AND SURROUNDING THE CORE MEMBER BETWEEN THE FEED INLET AND THE SHAPING CAVITY WITH AN OPENING PROVIDING A PASSAGEWAY ALONG THE CORE MEMBER FOR FLOW OF PLASTIC TO THE SHAPING CAVITY,
Claim 2
Dependent Claim
102 words
A DIE FOR EXTRUSION OF PIPE AND LIKE PROFILED SHAPES OF HIGH MOLECULAR WEIGHT, HEAT DEPOLYMERIZABLE THERMOPLASTIC POLYMER WHICH COMPRISES IN COMBINATION, A HEAD CAVITY, A CORE MEMBER, A FEED INLET ENTERING SAID HEAD CAVITY AT ONE SIDE AND AT AN ANGLE TO THE LONGITUDINAL AXIS OF THE CORE MEMBER, A SHAPING CAVITY DOWNSTREAM FROM THE FEED INLET, AND A DISTRIBUTING PLATE PERPENDICULAR TO THE LONGITUDINAL AXIS OF THE CORE MEMBER AND SURROUNDING THE CORE MEMBER BETWEEN THE FEED INLET AND THE SHAPING CAVITY WITH AN OPENING PROVIDING A PASSAGEWAY ALONG THE CORE MEMBER FOR FLOW OF PLASTIC TO THE SHAPING CAVITY,
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-06-12 | 1964-12-12 | 1965-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-06-12 | 1968-12-12 | 1969-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-06-12 | 1972-12-12 | 1973-06-13 | $7700.00 | Window Closed / Lapsed |