US3642976A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Solid phase hydrostatic extrusion of a filled thermoplastic billet to produce orientation
Assignee: Imperial Chemical Industries Ltd
•
Filing: 1969-02-26
•
Granted: 1972-02-15
•
Expires: 1989-02-26
Abstract
Abstract PROCESS FORMING ARTICLE FROM A THERMOPLASTIC MATRIX CONTAINING FILLERS OF DEFINED SHAPED, PARTICULARY FIBRES AND PLATE-LIKE STRUCTURES, IN WHICH BOTH THE MATRIX AND FILLER ARE ORIENTED IN THE SAME DIRECTION OF DIRECTIONS. THE TENSILE PROPERTIES OF THE ARTICLES ARE IMPROVED OVER SIMILAR ARTICLES IN WHICH THE COMPONENTS ARE UNORIENTED. THE PREFERRED PROCESS FOR PRODUCING SUCH ARTICLES IS HYDROSTATIC EXTRUSION BELOW THE MELTING POINT OF THE COMPONENTS.
Inventors
- 👤 Alan Buckley
- 👤 Christopher Cassin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 06:42
CPC Classifications
B; B29; B29C; B29C55/00; B29C55/30; B29C48/00; B29C48/022; B29C48/03; B29C48/06; B29C48/07; B29C48/08; B29C48/09; B29K; B29K2023/00; B29K2027/00; B29K2027/12; B29K2027/18; B29K2059/00; B29K2067/00; B29K2077/00; B29K2105/00; B29K2105/06; B29K2105/12; B29K2105/16; B29K2709/00; B29K2709/08
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1975-02-14 | 1975-08-16 | 1976-02-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-02-14 | 1979-08-16 | 1980-02-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-02-14 | 1983-08-16 | 1984-02-15 | $7700.00 | Window Closed / Lapsed |