US2947030A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Feeding mechanism for extruders
Assignee: Uniroyal Inc
•
Filing: 1956-08-29
•
Granted: 1960-08-02
•
Expires: 1976-08-29
Abstract
No abstract record available.
Inventors
- 👤 Charles F Varn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:01
CPC Classifications
B; B29; B29C; B29C48/00; B29C48/25; B29C48/285; B29C48/288; B29C48/2888; B29B; B29B7/00; B29B7/30; B29B7/58; B29B7/60; B29B7/74; B29B7/7476; B29B7/7495; B29C48/03; B29C48/07; B29C48/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1246193A
Cited
GB273455A
Cited
GB487948A
Cited
US2615199A
Cited
US2422722A
Cited
US2519014A
Cited
US2765490A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-08-02 | 1964-02-01 | 1964-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-08-02 | 1968-02-01 | 1968-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-08-02 | 1972-02-01 | 1972-08-02 | $7700.00 | Window Closed / Lapsed |