Granted Patent
Utility
US 5,253,397 · App. 07/730,828
Hydroentangling manufacturing method for hydrophilic non-wovens comprising natural fibers, in particular of unbleached cotton
Inventors:
Jean-Loup Neveu, Bernard Louis Dit Picard
Patented Case
View Patent ↗
Granted: Oct 19, 1993
Filed: Jul 26, 1991
Inventors
Jean-Loup Neveu
Bernard Louis Dit Picard
Assignee (at issue)
Kaysersberg, S.A.
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.