Granted Patent
Utility
US 4,325,501 · App. 06/202,761
Extended spray pump
Inventor:
Joseph J. Shay
Patented Case
View Patent ↗
Granted: Apr 20, 1982
Filed: Oct 31, 1980
Inventor
Joseph J. Shay
Assignee (at issue)
Ethyl Products Company
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.