Granted Patent
Utility
US 4,893,683 · App. 07/344,623
Dozer blade mounting assembly
Inventors:
Rudolf Horsch, Claude M. Frisbee
Patented Case
View Patent ↗
Granted: Jan 16, 1990
Filed: Apr 28, 1989
Inventors
Rudolf Horsch
Claude M. Frisbee
Assignee (at issue)
J. I. Case 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.