US2090434A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Screw press for working plastic masses
Assignee: FIRM Gebr BUHLER
•
Filing: 1936-02-29
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Granted: 1937-08-17
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Expires: 1956-02-29
Abstract
No abstract record available.
Inventors
- 👤 Thalmann Emil
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:04
CPC Classifications
B; B30; B30B; B30B11/00; B30B11/22; B30B11/24; B29; B29C; B29C48/00; B29C48/25; B29C48/256; B29C48/2561; B29C48/36; B29C48/50; B30B11/241; B29C48/03
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) | 1940-08-16 | 1941-02-15 | 1941-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1944-08-16 | 1945-02-15 | 1945-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1948-08-16 | 1949-02-15 | 1949-08-17 | $7700.00 | Window Closed / Lapsed |