Granted Patent
Utility
US 5,335,655 · App. 07/943,082
Suction control valve
Inventor:
Kok-Hiong Kee
Patented Case
View Patent ↗
Granted: Aug 9, 1994
Filed: Sep 10, 1992
Inventor
Kok-Hiong Kee
Assignee (at issue)
Sherwood Medical Company
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.