Patent US1499452A successfully refreshed from Google Patents.
Patent US2419773A successfully refreshed from Google Patents.
US2419773A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mounting for removable screens of hammer mills, grinders, and the like
Assignee: Grundler Crusher and Pulverizer Co
•
Filing: 1943-10-11
•
Granted: 1947-04-29
•
Expires: 1963-10-11
Abstract
No abstract record available.
Inventors
- 👤 William P Gruendler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 05:33
CPC Classifications
B; B02; B02C; B02C13/00; B02C13/26; B02C13/282; B02C13/284
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1509089A
Cited
US1807388A
Cited
US619353A
Cited
US1125137A
Cited
US1135594A
Cited
US877690A
Cited
US919090A
Cited
US1005458A
Cited
US1250358A
Cited
US1235868A
Cited
US1339933A
Cited
US1407330A
Cited
US1365228A
Cited
US1406189A
Cited
US1485072A
Cited
US1527818A
Cited
US1645770A
Cited
US1698758A
Cited
US1759448A
Cited
US1730300A
Cited
US2100200A
Cited
US2172096A
Cited
US2076297A
Cited
US2076025A
Cited
US2125352A
Cited
US2122658A
Cited
US2293664A
Cited
US2227090A
Cited
US2292852A
Cited
US2360892A
Cited
US2325886A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-04-28 | 1950-10-28 | 1951-04-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-04-28 | 1954-10-28 | 1955-04-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-04-28 | 1958-10-28 | 1959-04-29 | $7700.00 | Window Closed / Lapsed |