Granted Patent
Utility
US 5,316,452 · App. 07/881,397
Dispensing assembly with interchangeable cartridge pumps
Inventors:
Steven A. Bogen, Herbert H. Loeffler
Patented Case
View Patent ↗
Granted: May 31, 1994
Filed: May 11, 1992
Inventors
Steven A. Bogen
Herbert H. Loeffler
Assignee (at issue)
Gilbert Corporation
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.