Granted Patent
Utility
US 4,259,134 · App. 06/029,442
Polymer film slitter-sealer apparatus and method
Inventors:
Richard L. Joice, Joseph C. Adamo
Patented Case
View Patent ↗
Granted: Mar 31, 1981
Filed: Apr 12, 1979
Inventors
Richard L. Joice
Joseph C. Adamo
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.