Granted Patent
Utility
US 5,490,700 · App. 08/283,462
Sheet metal U.L. screw
Inventor:
Martin Zuckerman
Patented Case
View Patent ↗
Granted: Feb 13, 1996
Filed: Aug 3, 1994
Inventor
Martin Zuckerman
Assignee (at issue)
Emhart 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.