US3193879A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Extrusion device
Assignee: Millennium Petrochemicals Inc
•
Filing: 1962-10-23
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Granted: 1965-07-13
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Expires: 1982-10-23
Abstract
No abstract record available.
Inventors
- 👤 Herbert O Corbett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:35
CPC Classifications
B; B29; B29C; B29C48/00; B29C48/25; B29C48/30; B29C48/32; B29C48/03; B29C48/09; B29C48/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
99 words
AN EXTRUSION DIE; SAID EXTRUSION DIE COMPRISING AN UPPER LIP RING, AND A LOWER LIP RING; SAID UPPER LIP RING AND LOWER LIP RING BEING FIXED IN RIGID SPACED RELATIONSHIP WITH RESPECT TO ONE ANOTHER TO DEFINE A RADIALLY EXTENDING CHAMBER TERMINATING ON AN ANNULAR DISCHARGE ORIFICE; A CHANNEL EXTENDING INTO THE CENTER OF SAID RADIALLY EXTENDING CHAMBER TO CONDUCT A MASS OF MOLTEN RESIN INTO SAID CHAMBER, AND A RADIAL DIRECTING MEANS INTERPOSED BETWEEN SAID CHANNEL AND THE RADIALLY EXTENDING PORTIONS OF SAID CHAMBER; SAID RADIAL DIRECTING MEANS COMPRISING A RING HAVING A PLURALITY OF RADIALLY DIRECTED SLOTS
Claim 2
Dependent Claim
99 words
AN EXTRUSION DIE; SAID EXTRUSION DIE COMPRISING AN UPPER LIP RING, AND A LOWER LIP RING; SAID UPPER LIP RING AND LOWER LIP RING BEING FIXED IN RIGID SPACED RELATIONSHIP WITH RESPECT TO ONE ANOTHER TO DEFINE A RADIALLY EXTENDING CHAMBER TERMINATING ON AN ANNULAR DISCHARGE ORIFICE; A CHANNEL EXTENDING INTO THE CENTER OF SAID RADIALLY EXTENDING CHAMBER TO CONDUCT A MASS OF MOLTEN RESIN INTO SAID CHAMBER, AND A RADIAL DIRECTING MEANS INTERPOSED BETWEEN SAID CHANNEL AND THE RADIALLY EXTENDING PORTIONS OF SAID CHAMBER; SAID RADIAL DIRECTING MEANS COMPRISING A RING HAVING A PLURALITY OF RADIALLY DIRECTED SLOTS
References Cited (Backward Citations)
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Cited
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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) | 1968-07-12 | 1969-01-11 | 1969-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-12 | 1973-01-11 | 1973-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-12 | 1977-01-11 | 1977-07-13 | $7700.00 | Window Closed / Lapsed |