Granted Patent
Utility
US 4,991,820 · App. 07/477,073
Fluid conduit coupler
Inventors:
Gabriel Kohn, Robert L. Bollinger, Gregory A. Svolopoulos
Patented Case
View Patent ↗
Granted: Feb 12, 1991
Filed: Feb 9, 1990
Inventors
Gabriel Kohn
Robert L. Bollinger
Gregory A. Svolopoulos
Assignee (at issue)
Allied Healthcare Products, 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.