Granted Patent
Utility
US 4,884,707 · App. 07/303,130
Water bottle cap
Inventor:
Harry E. Crisci
Patented Case
View Patent ↗
Granted: Dec 5, 1989
Filed: Jan 30, 1989
Inventor
Harry E. Crisci
Assignee (at issue)
Northern Engineering & Plastics, Corp.
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.