Granted Patent
Utility
US 4,790,705 · App. 07/013,599
Method of forming a buckle resistant can end
Inventors:
Harlen E. Wilkinson, Neal E. Langseder
Patented Case
View Patent ↗
Granted: Dec 13, 1988
Filed: Feb 11, 1987
Inventors
Harlen E. Wilkinson
Neal E. Langseder
Assignee (at issue)
American National Can 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.