Granted Patent
Utility
US 4,516,575 · App. 06/384,596
Surgical scalpel
Inventors:
Gregory J. Gerhard, William M. Graham
Patented Case
View Patent ↗
Granted: May 14, 1985
Filed: Jun 3, 1982
Inventors
Gregory J. Gerhard
William M. Graham
Assignee (at issue)
Coopervision, 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.