Granted Patent
Utility
US 5,650,075 · App. 08/450,661
Method for etching photolithographically produced quartz crystal blanks for singulation
Inventors:
Kevin Haas, Robert S. Witte, Charles Zimnicki, Iyad Alhayek
Patented Case
View Patent ↗
Granted: Jul 22, 1997
Filed: May 30, 1995
Inventors
Kevin Haas
Robert S. Witte
Charles Zimnicki
Iyad Alhayek
Assignee (at issue)
Motorola, 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.