Patent Explorer
Browse, filter, and analyze 2 patents across global jurisdictions.
| Patent Number | Title | Assignee | Status | Filing Date | Grant Date | Expires | Remaining | Claims | Actions |
|---|---|---|---|---|---|---|---|---|---|
| US2278506A | Apparatus for geophysical prospecting | Lundberg Exploration S A | Expired / Lapsed | 1939-10-04 | 1942-04-07 | 1959-10-04 | 0.0 yrs | 0 | |
| US2241874A | Method for geophysical exploration | Lundberg Exploration S A | Expired / Lapsed | 1939-02-24 | 1941-05-13 | 1959-02-24 | 0.0 yrs | 0 |