US2769201A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Screw extrusion apparatus for manufacturing articles of thermoplastic and thermosetting materials
Assignee: Individual
•
Filing: 1949-06-23
•
Granted: 1956-11-06
•
Expires: 1969-06-23
Abstract
No abstract record available.
Inventors
- 👤 Lorenian Zareh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 14:12
CPC Classifications
B; B29; B29C; B29C48/00; B29C48/15; B29C48/25; B29C48/78; B29C48/80; B29C48/84; B29C48/845; B29C48/022; B29C48/16; B29C48/17; B29C48/285; B29C48/286; B29C48/29; B29C48/36; B29C48/395; B29C48/445; B29C48/50; B29C48/505; B29C48/51; B29C48/515; B29C48/793; B29C48/83; B29C48/832; B29C48/85; B29C48/03; B29C48/06; B29K; B29K2101/00; B29K2101/10; B29K2301/00; B29K2301/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-11-06 | 1960-05-07 | 1960-11-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-11-06 | 1964-05-07 | 1964-11-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-11-06 | 1968-05-07 | 1968-11-06 | $7700.00 | Window Closed / Lapsed |