Patent Explorer
Browse, filter, and analyze 3 patents across global jurisdictions.
| Patent Number | Title | Assignee | Status | Filing Date | Grant Date | Expires | Remaining | Claims | Actions |
|---|---|---|---|---|---|---|---|---|---|
| US3190196A | Hopper and gate unit for concrete slab laying machines | Guntert and Zimmerman Construction Div Inc | Expired / Lapsed | 1964-04-06 | 1965-06-22 | 1984-04-06 | 0.0 yrs | 0 | |
| US3098414A | Header assembly for concrete laying machines | Guntert and Zimmerman Construction Div Inc | Expired / Lapsed | 1960-03-18 | 1963-07-23 | 1980-03-18 | 0.0 yrs | 2 | |
| US2844882A | Automatic leveling mechanism for concrete slab laying machines | Guntert and Zimmerman Construction Div Inc | Expired / Lapsed | 1955-10-17 | 1958-07-29 | 1975-10-17 | 0.0 yrs | 0 |