Patent Explorer
Browse, filter, and analyze 4 patents across global jurisdictions.
| Patent Number | Title | Assignee | Status | Filing Date | Grant Date | Expires | Remaining | Claims | Actions |
|---|---|---|---|---|---|---|---|---|---|
| US1572643A | Track shifting and raising machine | Western Wheeled Scraper Co | Expired / Lapsed | 1925-05-25 | 1926-02-09 | 1945-05-25 | 0.0 yrs | 0 | |
| US1513576A | Means for dumping cars | Western Wheeled Scraper Co | Expired / Lapsed | 1923-01-19 | 1924-10-28 | 1943-01-19 | 0.0 yrs | 0 | |
| US1395469A | Three-way valve | Western Wheeled Scraper Co | Expired / Lapsed | 1918-12-02 | 1921-11-01 | 1938-12-02 | 0.0 yrs | 0 | |
| US894280A | Engineer's valve for compressed-air-operated dump-cars. | Western Wheeled Scraper Co | Expired / Lapsed | 1907-10-12 | 1908-07-28 | 1927-10-12 | 0.0 yrs | 0 |