Granted Patent
Utility
US 6,338,770 · App. 09/502,772
Selective horizontal, continuous vertical, sealing action
Inventor:
Lee T. Spranger
Patented Case
View Patent ↗
Granted: Jan 15, 2002
Filed: Feb 11, 2000
Inventor
Lee T. Spranger
Assignee (at issue)
Moore North America, 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.