Granted Patent
Utility
US 4,858,756 · App. 06/526,028
Container
Inventors:
Melvin B. Herrin, Richard Mazurek
Patented Case
View Patent ↗
Granted: Aug 22, 1989
Filed: Aug 24, 1983
Inventors
Melvin B. Herrin
Richard Mazurek
Assignee (at issue)
Klearfold, 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.