Patent US1934647A successfully refreshed from Google Patents.
US1934647A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Extruding machine for plastic material
Assignee: Wingfoot Corp
•
Filing: 1930-12-10
•
Granted: 1933-11-07
•
Expires: 1950-12-10
Abstract
No abstract record available.
Inventors
- 👤 Will C State
- 👤 Jorgen I Haase
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 07:47
CPC Classifications
B; B29; B29C; B29C48/00; B29C48/25; B29C48/30; B29C48/32; B29C48/34; B29C48/03; B29C48/09; B29C48/16; B29C48/18; B29C48/19; B29C48/05; B29C48/10; B29C48/15; B29C48/151; B29C48/255; B29C48/2556; B29C48/36; B29C48/49; B29C48/50; B29C48/695; B29C48/70
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) | 1936-11-06 | 1937-05-08 | 1937-11-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1940-11-06 | 1941-05-08 | 1941-11-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1944-11-06 | 1945-05-08 | 1945-11-07 | $7700.00 | Window Closed / Lapsed |