Patent Explorer
Browse, filter, and analyze 3 patents across global jurisdictions.
| Patent Number | Title | Assignee | Status | Filing Date | Grant Date | Expires | Remaining | Claims | Actions |
|---|---|---|---|---|---|---|---|---|---|
| US2219283A | Apparatus for conveying powdered material | FIRM G POLYSIUS AG | Expired / Lapsed | 1938-08-22 | 1940-10-29 | 1958-08-22 | 0.0 yrs | 0 | |
| US1971852A | Process for stirring up farinaceous materials in receptacles of any kind by compressed air, compressed gas, or the like | FIRM G POLYSIUS AG | Expired / Lapsed | 1932-06-01 | 1934-08-28 | 1952-06-01 | 0.0 yrs | 0 | |
| US1971853A | Apparatus for conveying powdered material | FIRM G POLYSIUS AG | Expired / Lapsed | 1934-03-17 | 1934-08-28 | 1954-03-17 | 0.0 yrs | 0 |