Granted Patent
Utility
US 5,643,389 · App. 07/933,823
Stacked pressure seal method
Inventors:
Michael S. Kalisiak, Eugene E. Mietlicki
Patented Case
View Patent ↗
Granted: Jul 1, 1997
Filed: Aug 24, 1992
Inventors
Michael S. Kalisiak
Eugene E. Mietlicki
Assignee (at issue)
Moore Business Forms, 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.