US2492872A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Material reducing apparatus having a shiftable feed means
Assignee: Jeffrey Manufacturing Co
•
Filing: 1945-06-09
•
Granted: 1949-12-27
•
Expires: 1965-06-09
Abstract
No abstract record available.
Inventors
- 👤 Lloyd K Knight
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:31
CPC Classifications
B; B02; B02C; B02C13/00; B02C13/26; B02C13/286; B02C2013/28618; B02C2013/28672
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2398932A
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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) | 1952-12-26 | 1953-06-27 | 1953-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-12-26 | 1957-06-27 | 1957-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-12-26 | 1961-06-27 | 1961-12-27 | $7700.00 | Window Closed / Lapsed |