Granted Patent
Utility
US 5,182,896 · App. 07/756,189
Apparatus and method for heat-sealing a film cover to open ended containers
Inventor:
Larry S. Maccherone
Patented Case
View Patent ↗
Granted: Feb 2, 1993
Filed: Sep 9, 1991
Inventor
Larry S. Maccherone
Assignee (at issue)
Sweetheart Cup Company 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.