Granted Patent
Utility
US 5,292,105 · App. 08/030,144
Knifegate valve
Inventor:
Goran Velimirovic
Patented Case
View Patent ↗
Granted: Mar 8, 1994
Filed: Feb 26, 1993
Inventor
Goran Velimirovic
Assignee (at issue)
Keystone International
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.