Granted Patent
Utility
US 6,605,925 · App. 10/076,743
Power source circuit
Inventors:
Yoshihisa Tange, Tsutomu Ando
Patented Case
View Patent ↗
Granted: Aug 12, 2003
Filed: Feb 14, 2002
Inventors
Yoshihisa Tange
Tsutomu Ando
Assignee (at issue)
SEIKO INSTRUMENTS 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.