Granted Patent
Utility
US 6,447,643 · App. 09/822,265
Method of producing a wetlaid thermobonded web-shaped fibrous material and material produced by the method
Inventors:
Lars Fingal, Bernt Johansson, Lennart Reiner
Patented Case
View Patent ↗
Granted: Sep 10, 2002
Filed: Apr 2, 2001
Inventors
Lars Fingal
Bernt Johansson
Lennart Reiner
Assignee (at issue)
SCA HYGIENE PRODUCTS AB
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.