Granted Patent
Utility
US 6,003,738 · App. 08/998,793
Child-resistant rotating lock for manually operated pump dispenser
Inventors:
Donald D. Foster, Philip L. Nelson
Patented Case
View Patent ↗
Granted: Dec 21, 1999
Filed: Dec 29, 1997
Inventors
Donald D. Foster
Philip L. Nelson
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.