US3088167A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for extruding tubular films
Assignee: Millennium Petrochemicals Inc
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Filing: 1960-05-20
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Granted: 1963-05-07
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Expires: 1980-05-20
Abstract
No abstract record available.
Inventors
- 👤 Herbert O Corbett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:50
CPC Classifications
B; B21; B21C; B21C25/00; B21C25/02; B29; B29C; B29C48/00; B29C48/03; B29C48/09; B29C48/10; B29C48/25; B29C48/30; B29C48/32; B29C48/34; B29C48/88; B29C48/911; B29C48/9115; B29C48/912
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
90 words
AN EXTRUSION DIE COMPRISING A PAIR OF ANNULAR DIE PLATES ASSEMBLED IN CONCENTRIC, OPPOSED SURFACE RELATION; AN ANNULAR PASSAGEWAY DEFINED BETWEEN SAID DIE PLATES INCLUDING ALSO CONTINUOUS ANNULAR DIE ORIFICE OPENING OUTWARDLY FROM SAID ANNULAR PASSAGEWAY BETWEEN SAID DIE PLATES AND PERIPHERALLY THEREOF; AT LEAST ONE CONDUIT PASSAGEWAY OPENING THROUGH AT LEAST ONE OF SAID PLATES INTO COMMUNICATION WITH SAID ANNULAR PASSAGEWAY; AN ANNULAR STUD PLATE JOINED TO ONE OF SAID DIE PLATES IN CONCENTRIC, OPPOSED SURFACE RELATION THERETO; AND A SERIES OF STUDS DISPOSED IN CIRCUMFERENTIAL SPACED RELATION ABOUT
Claim 2
Dependent Claim
90 words
AN EXTRUSION DIE COMPRISING A PAIR OF ANNULAR DIE PLATES ASSEMBLED IN CONCENTRIC, OPPOSED SURFACE RELATION; AN ANNULAR PASSAGEWAY DEFINED BETWEEN SAID DIE PLATES INCLUDING ALSO CONTINUOUS ANNULAR DIE ORIFICE OPENING OUTWARDLY FROM SAID ANNULAR PASSAGEWAY BETWEEN SAID DIE PLATES AND PERIPHERALLY THEREOF; AT LEAST ONE CONDUIT PASSAGEWAY OPENING THROUGH AT LEAST ONE OF SAID PLATES INTO COMMUNICATION WITH SAID ANNULAR PASSAGEWAY; AN ANNULAR STUD PLATE JOINED TO ONE OF SAID DIE PLATES IN CONCENTRIC, OPPOSED SURFACE RELATION THERETO; AND A SERIES OF STUDS DISPOSED IN CIRCUMFERENTIAL SPACED RELATION ABOUT
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) | 1966-05-06 | 1966-11-05 | 1967-05-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-05-06 | 1970-11-05 | 1971-05-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-05-06 | 1974-11-05 | 1975-05-07 | $7700.00 | Window Closed / Lapsed |