US3328501A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Extrusion process for orienting fibers in molding material
Assignee: Johns Manville Corp
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Filing: 1964-10-30
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Granted: 1967-06-27
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Expires: 1984-10-30
Abstract
No abstract record available.
Inventors
- 👤 Barnett Irvin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:11
CPC Classifications
B; B29; B29C; B29C48/00; B29C48/25; B29C48/30; B29C48/305; B29C48/022; B29C48/03; B29C48/07; B29C48/08; B29K; B29K2105/00; B29K2105/06; B29K2105/12; B29K2709/00; B29K2709/08; Y; Y10; Y10S; Y10S264/00; Y10S264/19; Y10T; Y10T428/00; Y10T428/24; Y10T428/24058; Y10T428/24124
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
48 words
A PROCESS OF EXTRUDING MOLDABLE MATERIAL CONTAINING FIBERS COMPRISING THE STEPS OF: EXPRESSING A MIXTURE OF FIBERS AND MOLDABLE COMPOUND THROUGH A FIRST EXTRUSION PASSAGE BRANCH INTO AN EXPANDED SECOND EXTRUSION PASSAGE BRANCH TRANSVERSE TO SAID FIRST BRANCH, SAID SECOND PASSAGE BRANCH HAVING A SEMI-OVAL PORTION BEING DEFINED
Claim 2
Dependent Claim
48 words
A PROCESS OF EXTRUDING MOLDABLE MATERIAL CONTAINING FIBERS COMPRISING THE STEPS OF: EXPRESSING A MIXTURE OF FIBERS AND MOLDABLE COMPOUND THROUGH A FIRST EXTRUSION PASSAGE BRANCH INTO AN EXPANDED SECOND EXTRUSION PASSAGE BRANCH TRANSVERSE TO SAID FIRST BRANCH, SAID SECOND PASSAGE BRANCH HAVING A SEMI-OVAL PORTION BEING DEFINED
References Cited (Backward Citations)
GB433245A
Cited
US2315851A
Cited
US2372177A
Cited
US2602187A
Cited
US2702410A
Cited
US2777787A
Cited
US2791806A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-06-26 | 1970-12-26 | 1971-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-06-26 | 1974-12-26 | 1975-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-06-26 | 1978-12-26 | 1979-06-27 | $7700.00 | Window Closed / Lapsed |