Granted Patent
Utility
US 4,379,595 · App. 06/277,741
Ripper with offset impacting means and slotted shank
Inventors:
Michael A. Roussin, Steven D. Jones, Albert L. Woody
Patented Case
View Patent ↗
Granted: Apr 12, 1983
Filed: Feb 17, 1981
Inventors
Michael A. Roussin
Steven D. Jones
Albert L. Woody
Assignee (at issue)
Caterpillar Tractor Co.
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.