Granted Patent
Utility
US 5,012,968 · App. 07/359,291
Device for controlling access in fastener manipulation systems
Inventor:
William D. Hylwa
Patented Case
View Patent ↗
Granted: May 7, 1991
Filed: May 31, 1989
Inventor
William D. Hylwa
Assignee (at issue)
Emhart 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.