Granted Patent
Utility
US 5,793,349 · App. 08/529,440
Electromagnetic shutter and cover
Inventor:
John Browne
Patented Case
View Patent ↗
Granted: Aug 11, 1998
Filed: Sep 18, 1995
Inventor
John Browne
Assignee (at issue)
Mark IV Industries Corp.
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.