Granted Patent
Utility
US 4,593,685 · App. 06/542,621
Bone cement applicator
Inventors:
William F. McKay, Peter S. Walker
Patented Case
View Patent ↗
Granted: Jun 10, 1986
Filed: Oct 17, 1983
Inventors
William F. McKay
Peter S. Walker
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.