Granted Patent
Utility
US 4,231,693 · App. 06/016,014
Reamer with radial relief
Inventor:
James A. Kammeraad
Patented Case
View Patent ↗
Granted: Nov 4, 1980
Filed: Feb 28, 1979
Inventor
James A. Kammeraad
Assignee (at issue)
K-LINE INDUSTRIES, 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.