Patent US2552037A successfully refreshed from Google Patents.
US2552037A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High-speed pulverizer
Assignee: General Mills Inc
•
Filing: 1945-12-01
•
Granted: 1951-05-08
•
Expires: 1965-12-01
Abstract
No abstract record available.
Inventors
- 👤 Gerard W Elverum
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 18:37
CPC Classifications
B; B02; B02C; B02C9/00
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
DE62079C
Cited
US442086A
Cited
US615811A
Cited
US1340635A
Cited
GB270798A
Cited
US2294921A
Cited
US2358170A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-05-07 | 1954-11-06 | 1955-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-05-07 | 1958-11-06 | 1959-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-05-07 | 1962-11-06 | 1963-05-08 | $7700.00 | Window Closed / Lapsed |