Granted Patent
Utility
US 4,852,435 · App. 07/083,631
Portable flange facer
Inventor:
Christopher Charles Hunt
Patented Case
View Patent ↗
Granted: Aug 1, 1989
Filed: Aug 10, 1987
Inventor
Christopher Charles Hunt
Assignee (at issue)
Climax Portable Machine Tools, 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.