Granted Patent
Utility
US 4,457,458 · App. 06/441,481
Dispensing cap
Inventor:
Alois R. Heinol
Patented Case
View Patent ↗
Granted: Jul 3, 1984
Filed: Nov 15, 1982
Inventor
Alois R. Heinol
Assignee (at issue)
Knight Engineering & Molding Co.
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.