Granted Patent
Utility
US 5,110,143 · App. 07/621,175
Seal cartridge for use in idler rollers
Inventor:
Bryon Hibbetts
Patented Case
View Patent ↗
Granted: May 5, 1992
Filed: Nov 30, 1990
Inventor
Bryon Hibbetts
Assignee (at issue)
FMC 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.