Granted Patent
Utility
US 5,823,395 · App. 08/847,450
Child-resistant pump dispenser
Inventors:
Donald D. Foster, Bert D. Heinzelman, Donald R. Lamond, William Fiebel
Patented Case
View Patent ↗
Granted: Oct 20, 1998
Filed: Apr 24, 1997
Inventors
Donald D. Foster
Bert D. Heinzelman
Donald R. Lamond
William Fiebel
Assignee (at issue)
Continental Sprayers International, 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.