Granted Patent
Utility
US 4,621,630 · App. 06/485,541
Guide for femoral neck osteotomy
Inventor:
Robert V. Kenna
Patented Case
View Patent ↗
Granted: Nov 11, 1986
Filed: Apr 15, 1983
Inventor
Robert V. Kenna
Assignee (at issue)
Pfizer Hospital Products Group, 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.