Granted Patent
Utility
US 5,404,681 · App. 07/751,335
Internal finishing tool and method of making same
Inventors:
Alfred F. Scheider, R. Brown Warner
Patented Case
View Patent ↗
Granted: Apr 11, 1995
Filed: Aug 29, 1991
Inventors
Alfred F. Scheider
R. Brown Warner
Assignee (at issue)
Jason Incorporated
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.