US2480085A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ball mill for continuous sifting and grinding
Assignee: General Mills Inc
•
Filing: 1944-08-19
•
Granted: 1949-08-23
•
Expires: 1964-08-19
Abstract
No abstract record available.
Inventors
- 👤 George J Mitchell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:43
CPC Classifications
B; B02; B02C; B02C17/00; B02C17/02
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US178266A
Cited
US248122A
Cited
US536112A
Cited
US737750A
Cited
US735663A
Cited
US801854A
Cited
US833664A
Cited
US1355474A
Cited
US1787788A
Cited
US2050458A
Cited
US2200677A
Cited
US2256731A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-08-22 | 1953-02-21 | 1953-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-08-22 | 1957-02-21 | 1957-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-08-22 | 1961-02-21 | 1961-08-23 | $7700.00 | Window Closed / Lapsed |