Granted Patent
Utility
US 6,579,417 · App. 09/700,719
Flocculation method for making a paper sheet
Inventors:
René Hund, Christian Jehn-Rendu
Patented Case
View Patent ↗
Granted: Jun 17, 2003
Filed: Mar 9, 2001
Inventors
René Hund
Christian Jehn-Rendu
Assignee (at issue)
SNF SA
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.