Granted Patent
Utility
US 5,246,540 · App. 07/861,760
Apparatus and method for etching glass
Inventor:
Ken Soda
Patented Case
View Patent ↗
Granted: Sep 21, 1993
Filed: Apr 1, 1992
Inventor
Ken Soda
Assignee (at issue)
TruVue, 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.