Granted Patent
Utility
US 5,500,497 · App. 08/356,859
Rubber dome/mylar switch
Inventor:
Roger Alan Merriman
Patented Case
View Patent ↗
Granted: Mar 19, 1996
Filed: Dec 15, 1994
Inventor
Roger Alan Merriman
Assignee (at issue)
AT&T 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.