Granted Patent
Utility
US 5,495,965 · App. 08/233,039
Dip tube for hand operated dispensing device
Inventor:
Michael G. Knickerbocker
Patented Case
View Patent ↗
Granted: Mar 5, 1996
Filed: Apr 25, 1994
Inventor
Michael G. Knickerbocker
Assignee (at issue)
AptarGroup, 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.