Granted Patent
Utility
US 6,069,552 · App. 09/324,567
Directionally sensitive switch
Inventor:
Anthony J. Van Zeeland
Patented Case
View Patent ↗
Granted: May 30, 2000
Filed: Jun 2, 1999
Inventor
Anthony J. Van Zeeland
Assignee (at issue)
Duraswitch 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.