Granted Patent
Utility
US 4,558,813 · App. 06/394,100
Container and sidewall blank having sinusoidal edge pattern
Inventor:
Frank P. Richards
Patented Case
View Patent ↗
Granted: Dec 17, 1985
Filed: Jul 1, 1982
Inventor
Frank P. Richards
Assignee (at issue)
Sealright Co. Inc.
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.