Granted Patent
Utility
US 6,617,756 · App. 09/762,846
Piezo-oscillator
Inventor:
Toshikazu Uchiyama
Patented Case
View Patent ↗
Granted: Sep 9, 2003
Filed: Feb 9, 2001
Inventor
Toshikazu Uchiyama
Assignee (at issue)
Toyo Communication Equipment Co., Ltd.
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.