Granted Patent
Utility
US 4,664,652 · App. 06/699,364
Wound evacuator
Inventor:
Eugene E. Weilbacher
Patented Case
View Patent ↗
Granted: May 12, 1987
Filed: Feb 7, 1985
Inventor
Eugene E. Weilbacher
Assignee (at issue)
Snyder Laboratories, 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.