Granted Patent
Utility
US 4,972,939 · App. 07/433,420
End seal for idler roller
Inventors:
Russell H. C. Uttke, Edward J. Carney
Patented Case
View Patent ↗
Granted: Nov 27, 1990
Filed: Nov 7, 1989
Inventors
Russell H. C. Uttke
Edward J. Carney
Assignee (at issue)
REXNORD GMBH
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.