Granted Patent
Utility
US 4,897,159 · App. 07/165,001
Apparatus for pulp contaminant removal
Inventors:
Randall L. Bone, Albert P. Kriek, Eric D. Myracle, Don B. Rogers
Patented Case
View Patent ↗
Granted: Jan 30, 1990
Filed: Mar 7, 1988
Inventors
Randall L. Bone
Albert P. Kriek
Eric D. Myracle
Don B. Rogers
Assignee (at issue)
P.H. Glatfelter Company
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.