Patent Explorer
Browse, filter, and analyze 2 patents across global jurisdictions.
| Patent Number | Title | Assignee | Status | Filing Date | Grant Date | Expires | Remaining | Claims | Actions |
|---|---|---|---|---|---|---|---|---|---|
| US3015355A | Method for forming spirally ribbed tubing | General Gas Light Co | Expired / Lapsed | 1959-07-06 | 1962-01-02 | 1979-07-06 | 0.0 yrs | 0 | |
| US2729266A | Apparatus and method for making spirally corrugated metal tubes | General Gas Light Co | Expired / Lapsed | 1952-11-24 | 1956-01-03 | 1972-11-24 | 0.0 yrs | 0 |