Patent FR1242226A successfully refreshed from Google Patents.
US3584343A
Expired / Lapsed
US
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Extrusion head for composite profiles,especially tread strips for tires
Assignee: Continental AG
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Filing: 1968-11-01
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Granted: 1971-06-15
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Expires: 1988-11-01
Abstract
Abstract AN EXTRUSION HEAD FOR ARTICLES OF RUBBER AND RUBBERLIKE MATERIALS WHICH HAS FIRST AND SECOND PASSAGE MEANS FOR RESPECTIVELY CONVEYING THERETHROUGH DIFFERENT MATERIALS, AND IN WHICH A PRE-TEMPLET DIRECTS THE FLOW OF THE SECOND PASSAGE MEANS TO FLOW TO LATERAL PORTIONS OF A FINISH-TEMPLET MEANS WHILE THE FLOW FROM THE FIRST TEMPLET PASSAGE MEANS PASSES TO A SECTION IN THE FLAT TEMPLET MEANS WHICH IS BETWEEN SAID LATERIAL PORTIONS.
Inventors
- 👤 Wolfgang Kohlepp
- 👤 Heinz Moeller
- 👤 Gunter Meier
- 👤 Gerhard Deppe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 07:10
CPC Classifications
B; B29; B29D; B29D30/00; B29D30/06; B29D30/52; B29C; B29C48/00; B29C48/03; B29C48/07; B29C48/12; B29C48/16; B29C48/18; B29C48/19; B29C48/08; B29L; B29L2030/00; B29L2030/002
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-06-14 | 1974-12-14 | 1975-06-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-14 | 1978-12-14 | 1979-06-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-14 | 1982-12-14 | 1983-06-15 | $7700.00 | Window Closed / Lapsed |