Granted Patent
Utility
US 5,394,776 · App. 08/045,411
Radial cutting tool for cutting thick-walled tubular members
Inventor:
Jerry H. Robinson
Patented Case
View Patent ↗
Granted: Mar 7, 1995
Filed: Apr 13, 1993
Inventor
Jerry H. Robinson
Assignee (at issue)
Wellcutter, 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.