US3182108A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Extrusion of thermoplastic tubing
Assignee: Phillips Petroleum Co
•
Filing: 1963-01-14
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Granted: 1965-05-04
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Expires: 1983-01-14
Abstract
No abstract record available.
Inventors
- 👤 Tony E Branscum
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 05:25
CPC Classifications
B; B29; B29C; B29C48/00; B29C48/25; B29C48/88; B29C48/90; B29C48/901; B29C48/903; B29C48/03; B29C48/09; B29C48/885; B29C48/908; B29C48/911; B29C48/9115; B29C48/912; B29C48/919
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
49 words
A METHOD OF EXTRUDING MOLTEN THERMOPLASTIC WHICH COMPRISES PASSING THE LATTER FROM A DIE INTO A SHAPING PASSAGEWAY SURROUNDING AND CONFINED BY A COOLING JACKET, AND DIRECTING A STREAM OF LIQUID DIRECTLY ONTO THE RESULTING SHAPED THERMOPLASTIC ARTICLE IMMEDIATELY AS IT ISSUES FROM THE CONFINEMENT OF SAID SHAPING PASSAGEWAY.
Claim 2
Independent Claim
49 words
A METHOD OF EXTRUDING MOLTEN THERMOPLASTIC WHICH COMPRISES PASSING THE LATTER FROM A DIE INTO A SHAPING PASSAGEWAY SURROUNDING AND CONFINED BY A COOLING JACKET, AND DIRECTING A STREAM OF LIQUID DIRECTLY ONTO THE RESULTING SHAPED THERMOPLASTIC ARTICLE IMMEDIATELY AS IT ISSUES FROM THE CONFINEMENT OF SAID SHAPING PASSAGEWAY.
References Cited (Backward Citations)
US3095608A
Cited
US3057013A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-05-03 | 1968-11-02 | 1969-05-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-05-03 | 1972-11-02 | 1973-05-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-05-03 | 1976-11-02 | 1977-05-04 | $7700.00 | Window Closed / Lapsed |