Patent Explorer
Browse, filter, and analyze 3 patents across global jurisdictions.
| Patent Number | Title | Assignee | Status | Filing Date | Grant Date | Expires | Remaining | Claims | Actions |
|---|---|---|---|---|---|---|---|---|---|
| US2297613A | Process of producing viscose rayon | WALTHER H DUISBERG | Expired / Lapsed | 1939-11-01 | 1942-09-29 | 1959-11-01 | 0.0 yrs | 0 | |
| US2261313A | Process for uniting materials of polymerized vinylchloride with wood, leather, or the like | WALTHER H DUISBERG | Expired / Lapsed | 1939-04-13 | 1941-11-04 | 1959-04-13 | 0.0 yrs | 0 | |
| US2231497A | Apparatus for producing a continuous sliver composed of rayon staple fibers from endless rayon filaments | WALTHER H DUISBERG | Expired / Lapsed | 1938-09-21 | 1941-02-11 | 1958-09-21 | 0.0 yrs | 0 |