Granted Patent
Utility
US 4,497,190 · App. 06/531,234
Apparatus for bending a rolling mill laying pipe
Inventor:
Harold E. Woodrow
Patented Case
View Patent ↗
Granted: Feb 5, 1985
Filed: Sep 12, 1983
Inventor
Harold E. Woodrow
Assignee (at issue)
Morgan Construction 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.