Patent Explorer
Browse, filter, and analyze 7 patents across global jurisdictions.
| Patent Number | Title | Assignee | Status | Filing Date | Grant Date | Expires | Remaining | Claims | Actions |
|---|---|---|---|---|---|---|---|---|---|
| US5222435A | Track renewal | Franz Plasser Bahnbaumaschinen Industrie GmbH | Expired / Lapsed | 1992-08-05 | 1993-06-29 | 2012-08-05 | 0.0 yrs | 11 | |
| US4040292A | Method and apparatus for indicating the density of ballast | Franz Plasser Bahnbaumaschinen Industrie GmbH | Expired / Lapsed | 1975-12-24 | 1977-08-09 | 1995-12-24 | 0.0 yrs | 12 | |
| US3939331A | Railroad track survey apparatus | Franz Plasser Bahnbaumaschinen Industrie GmbH | Expired / Lapsed | 1974-03-18 | 1976-02-17 | 1994-03-18 | 0.0 yrs | 19 | |
| US3821932A | Apparatus for indicating and correcting a track position deviation | Franz Plasser Bahnbaumaschinen Industrie GmbH | Expired / Lapsed | 1972-09-28 | 1974-07-02 | 1992-09-28 | 0.0 yrs | 25 | |
| US3750299A | Track apparatus with laser beam reference | Franz Plasser Bahnbaumaschinen Industrie GmbH | Expired / Lapsed | 1971-08-30 | 1973-08-07 | 1991-08-30 | 0.0 yrs | 28 | |
| US3545384A | Method and apparatus for correcting the position of a track | Franz Plasser Bahnbaumaschinen Industrie GmbH | Expired / Lapsed | 1968-05-14 | 1970-12-08 | 1988-05-14 | 0.0 yrs | 0 | |
| US3469534A | Mobile track liner and tamper | Franz Plasser Bahnbaumaschinen Industrie GmbH | Expired / Lapsed | 1967-09-20 | 1969-09-30 | 1987-09-20 | 0.0 yrs | 0 |