Granted Patent
Utility
US 4,497,422 · App. 06/507,091
Pouring cap
Inventor:
Garry W. Klees
Patented Case
View Patent ↗
Granted: Feb 5, 1985
Filed: Jun 23, 1983
Inventor
Garry W. Klees
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.