Patent Explorer
Browse, filter, and analyze 7 patents across global jurisdictions.
| Patent Number | Title | Assignee | Status | Filing Date | Grant Date | Expires | Remaining | Claims | Actions |
|---|---|---|---|---|---|---|---|---|---|
| GB1147633A | Flexible wall structures for gas cushion vehicles | Hovercraft Development Ltd | Expired / Lapsed | 1965-05-25 | — | 1985-05-25 | 0.0 yrs | 0 | |
| GB1089464A | Improvements in gas-cushion vehicles | Hovercraft Development Ltd | Expired / Lapsed | 1965-02-25 | — | 1985-02-25 | 0.0 yrs | 0 | |
| GB1203025A | Electromagnetically-propelled gas cushion vehicle | Hovercraft Development Ltd | Expired / Lapsed | 1966-09-06 | — | 1986-09-06 | 0.0 yrs | 0 | |
| US3500947A | Gas-cushion vehicles with wave restraining means for operation over water | Hovercraft Development Ltd | Expired / Lapsed | 1968-02-07 | 1970-03-17 | 1988-02-07 | 0.0 yrs | 0 | |
| US3318404A | Air cushion center of pressure displacing means for ground effect vehicles | Hovercraft Development Ltd | Expired / Lapsed | 1965-04-28 | 1967-05-09 | 1985-04-28 | 0.0 yrs | 2 | |
| US3289778A | Inflatable nozzle structure for surface effect devices | Hovercraft Development Ltd | Expired / Lapsed | 1963-06-06 | 1966-12-06 | 1983-06-06 | 0.0 yrs | 1 | |
| FR1238499A | Vehicle enhancements for traveling over land or water | Hovercraft Development Ltd | Expired / Lapsed | 1959-08-31 | 1960-12-02 | 1979-08-31 | 0.0 yrs | 0 |