Granted Patent
Utility
US 5,823,259 · App. 08/762,633
Well cap snorkel vent
Inventor:
Stephen Royle
Patented Case
View Patent ↗
Granted: Oct 20, 1998
Filed: Dec 9, 1996
Inventor
Stephen Royle
Assignee (at issue)
BAKER MANUFACTURING COMPANY, 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.