Granted Patent
Utility
US 4,664,159 · App. 06/821,151
Can filling system to prevent damage to cans
Inventor:
Larry M. Dugan
Patented Case
View Patent ↗
Granted: May 12, 1987
Filed: Jan 21, 1986
Inventor
Larry M. Dugan
Assignee (at issue)
Adolph Coors 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.