Granted Patent
Utility
US 6,302,597 · App. 09/461,348
Hidden viewfinder for camera
Inventors:
Guang-Shang Chang, Chien-Chin Chan, Chien-Ming Peng
Patented Case
View Patent ↗
Granted: Oct 16, 2001
Filed: Dec 15, 1999
Inventors
Guang-Shang Chang
Chien-Chin Chan
Chien-Ming Peng
Assignee (at issue)
Umax Data Systems, 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.