Patent Explorer
Browse, filter, and analyze 2 patents across global jurisdictions.
| Patent Number | Title | Assignee | Status | Filing Date | Grant Date | Expires | Remaining | Claims | Actions |
|---|---|---|---|---|---|---|---|---|---|
| US3742454A | Data retrieval means having multiple position switches | H B Engineering Corp | Expired / Lapsed | 1970-08-28 | 1973-06-26 | 1990-08-28 | 0.0 yrs | 24 | |
| US3636446A | Receiver for detecting signals within a predetermined bandwidth | H B Engineering Corp | Expired / Lapsed | 1970-03-04 | 1972-01-18 | 1990-03-04 | 0.0 yrs | 12 |