US3304580A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus producing pipe
Assignee: ConocoPhillips Co
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Filing: 1963-03-14
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Granted: 1967-02-21
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Expires: 1983-03-14
Abstract
No abstract record available.
Inventors
- 👤 Helmut P Fochler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:19
CPC Classifications
B; B29; B29C; B29C48/00; B29C48/25; B29C48/36; B29C48/50; B29C48/695; B29C48/70; B29C48/03; B29C48/09; B29C48/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
92 words
IN AN EXTRUDING APPARATUS FOR PRODUCING A POLYMERIC TUBING PRODUCT COMPRISING, AN ELONGATED BARREL HAVING A PASSAGEWAY EXTENDING AXIALLY THERETHROUGH, SAID BARREL HAVING AN INLET MEANS ADJACENT ONE END COMMUNICATING WITH SAID PASSAGEWAY AND AN OUTLET MEANS ADJACENT THE OTHER END COMMUNICATING AXIALLY WITH SAID PASSAGEWAY, DIE HEAD ATTACHED TO THE OTHER END OF SAID BARREL, SAID DIE HEAD HAVING A DIE CAVITY COMMUNICATING WITH SAID OUTLET MEANS, A ROTATABLE SCREW HAVING A SUBSTANTIALLY UNIFORM FLIGHT DEPTH THROUGHOUT ITS LENGTH DISPOSED WITHIN THE PASSAGEWAY OF SAID BARREL AND EXTENDING AXIALLY FROM SAID
Claim 2
Dependent Claim
92 words
IN AN EXTRUDING APPARATUS FOR PRODUCING A POLYMERIC TUBING PRODUCT COMPRISING, AN ELONGATED BARREL HAVING A PASSAGEWAY EXTENDING AXIALLY THERETHROUGH, SAID BARREL HAVING AN INLET MEANS ADJACENT ONE END COMMUNICATING WITH SAID PASSAGEWAY AND AN OUTLET MEANS ADJACENT THE OTHER END COMMUNICATING AXIALLY WITH SAID PASSAGEWAY, DIE HEAD ATTACHED TO THE OTHER END OF SAID BARREL, SAID DIE HEAD HAVING A DIE CAVITY COMMUNICATING WITH SAID OUTLET MEANS, A ROTATABLE SCREW HAVING A SUBSTANTIALLY UNIFORM FLIGHT DEPTH THROUGHOUT ITS LENGTH DISPOSED WITHIN THE PASSAGEWAY OF SAID BARREL AND EXTENDING AXIALLY FROM SAID
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) | 1970-02-20 | 1970-08-22 | 1971-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-20 | 1974-08-22 | 1975-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-20 | 1978-08-22 | 1979-02-21 | $7700.00 | Window Closed / Lapsed |