US2736058A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Extrusion apparatus
Assignee: —
•
Filing: —
•
Granted: 1956-02-28
•
Expires: 1973-02-28
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:27
CPC Classifications
B; B29; B29C; B29C48/00; B29C48/25; B29C48/36; B29C48/50; B29C48/76; B29C48/765; B29C48/766; B29C48/767; B29C48/03; B29C48/395; B29C48/505; B29C48/56
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
73 words
APPARATUS FOR EXTRUDING PLASTIC MATERIALS, COMPRISING A BARREL, A FEEDING MEANS OPERATING WITHIN SAID BARREL, A HOPPER AT ONE END OF SAID BARREL, A DIE AT THE OTHER END OF SAID BARREL, AN OPENING IN SAID BARREL INTERMEDIATE THE ENDS THEREOF, A DEVOLATILIZATION CHAMBER ATTACHED TO SAID OPENING, AND A BAFFLE EXTENDING INTO SAID OPENING EXTENDING SUBSTANTIALLY THE ENTIRE LENGTH THEREOF AND LESS THAN THE WIDTH THEREOF, SAID BAFFLE BEING LOCATED ALONG THE
References Cited (Backward Citations)
US2615199A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-02-27 | 1959-08-29 | 1960-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-02-27 | 1963-08-29 | 1964-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-02-27 | 1967-08-29 | 1968-02-28 | $7700.00 | Window Closed / Lapsed |