Granted Patent
Utility
US 6,535,245 · App. 09/097,704
Color balance adjusting device
Inventor:
Yasuhiro Yamamoto
Patented Case
View Patent ↗
Granted: Mar 18, 2003
Filed: Jun 16, 1998
Inventor
Yasuhiro Yamamoto
Assignee (at issue)
Pentax Corporation
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.