US3321803A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Extrusion die for easily decomposable materials
Assignee: Millennium Petrochemicals Inc
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Filing: 1966-01-14
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Granted: 1967-05-30
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Expires: 1986-01-14
Abstract
No abstract record available.
Inventors
- 👤 Corbett Herbert Oliver
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:57
CPC Classifications
B; B29; B29C; B29C48/00; B29C48/25; B29C48/30; B29C48/32; B29C48/34; B29C48/03; B29C48/09; B29C48/16; B29C48/18; B29C48/21; B29C48/304; B29C48/335; B29C48/336; B29C48/3363; B29K; B29K2105/00; B29K2105/06; B29K2105/20; B29L; B29L2031/00; B29L2031/34; B29L2031/3462
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
129 words
AN EXTRUSION DIE FOR EASILY DECOMPOSABLE MATERIALS COMPRISING FIRST, SECOND AND THIRD PLATES STACKED ATOP ONE ANOTHER; EACH OF SAID FIRST, SECOND AND THIRD PLATES HAVING ALIGNED CENTRAL OPENINGS THERETHROUGH; EACH OF SAID FIRST, SECOND AND THIRD PLATES DISPOSED IN PARALLEL SPACED PLANES; SAID FIRST AND SECOND PLATES HAVING ABUTTING SURFACES; SAID SECOND AND THIRD PLATES HAVING ABUTTING SURFACES; A FIRST CLOSED SEMICIRCULAR CHANNEL DEFINED BETWEEN SAID FIRST AND SECOND ABUTTING SURFACES; A SECOND CLOSED SEMICIRCULAR CHANNEL DEFINED BETWEEN SAID SECOND AND THIRD ABUTTING SURFACES; A COMMON CHANNEL MEANS EXTENDING FROM REGIONS EXTERNAL OF SAID EXTRUSION DIE AND INTO SAID FIRST AND SECOND CLOSED SEMICIRCULAR CHANNELS; SAID FIRST AND SECOND CLOSED SEMICIRCULAR CHANNELS DEFINING OVERLAPPING AXIALLY SPACED SECTIONS OF A FULL CIRCLE EXTENDING AROUND THE AXIS OF SAID DIE.
Claim 2
Dependent Claim
129 words
AN EXTRUSION DIE FOR EASILY DECOMPOSABLE MATERIALS COMPRISING FIRST, SECOND AND THIRD PLATES STACKED ATOP ONE ANOTHER; EACH OF SAID FIRST, SECOND AND THIRD PLATES HAVING ALIGNED CENTRAL OPENINGS THERETHROUGH; EACH OF SAID FIRST, SECOND AND THIRD PLATES DISPOSED IN PARALLEL SPACED PLANES; SAID FIRST AND SECOND PLATES HAVING ABUTTING SURFACES; SAID SECOND AND THIRD PLATES HAVING ABUTTING SURFACES; A FIRST CLOSED SEMICIRCULAR CHANNEL DEFINED BETWEEN SAID FIRST AND SECOND ABUTTING SURFACES; A SECOND CLOSED SEMICIRCULAR CHANNEL DEFINED BETWEEN SAID SECOND AND THIRD ABUTTING SURFACES; A COMMON CHANNEL MEANS EXTENDING FROM REGIONS EXTERNAL OF SAID EXTRUSION DIE AND INTO SAID FIRST AND SECOND CLOSED SEMICIRCULAR CHANNELS; SAID FIRST AND SECOND CLOSED SEMICIRCULAR CHANNELS DEFINING OVERLAPPING AXIALLY SPACED SECTIONS OF A FULL CIRCLE EXTENDING AROUND THE AXIS OF SAID DIE.
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) | 1970-05-29 | 1970-11-28 | 1971-05-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-05-29 | 1974-11-28 | 1975-05-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-05-29 | 1978-11-28 | 1979-05-30 | $7700.00 | Window Closed / Lapsed |