Granted Patent
Utility
US 5,228,829 · App. 07/551,398
Method and apparatus for dividing flow of high-consistency fiber suspension
Inventors:
Toivo Niskanen, Voitto Reponen, Jukka Timperi, Reijo Vesala, Vesa Vikman
Patented Case
View Patent ↗
Granted: Jul 20, 1993
Filed: Jul 12, 1990
Inventors
Toivo Niskanen
Voitto Reponen
Jukka Timperi
Reijo Vesala
Vesa Vikman
Assignee (at issue)
A. Ahlstrom Corporation
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.