Granted Patent
Utility
US 5,922,289 · App. 08/985,930
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Inventor:
Johnson N. S. Wong
Patented Case
View Patent ↗
Granted: Jul 13, 1999
Filed: Dec 5, 1997
Inventor
Johnson N. S. Wong
Assignee (at issue)
Evergreen Industries, 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.