Granted Patent
Utility
US 6,231,724 · App. 08/164,608
Thermal-distortion-free doctor for papermaking
Inventors:
Leroy H. Busker, J. Larry Chance, Jeffrey H. Pulkowski
Patented Case
View Patent ↗
Granted: May 15, 2001
Filed: Dec 8, 1993
Inventors
Leroy H. Busker
J. Larry Chance
Jeffrey H. Pulkowski
Assignee (at issue)
Beloit Technologies, Inc.
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.