Granted Patent
Utility
US 5,672,407 · App. 08/618,430
Structure with etchable metal
Inventor:
D. Gregory Beckett
Patented Case
View Patent ↗
Granted: Sep 30, 1997
Filed: Mar 15, 1996
Inventor
D. Gregory Beckett
Assignee (at issue)
Beckett Technologies 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.