Granted Patent
Utility
US 5,402,569 · App. 08/202,360
Method of manufacturing a pump with a modular cam profile liner
Inventors:
Bruce A. Maki, David L. Thompson
Patented Case
View Patent ↗
Granted: Apr 4, 1995
Filed: Feb 28, 1994
Inventors
Bruce A. Maki
David L. Thompson
Assignee (at issue)
Hypro, LLC
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.