Granted Patent
Utility
US 4,901,880 · App. 07/294,399
Score line groove for container end members
Inventors:
Richard L. Tatham, Alan Hunter
Patented Case
View Patent ↗
Granted: Feb 20, 1990
Filed: Jan 9, 1989
Inventors
Richard L. Tatham
Alan Hunter
Assignee (at issue)
Adolf 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.