Granted Patent
Utility
US 5,793,482 · App. 08/796,390
Multiple optical lens system with auto-focus calibration
Inventors:
Wen-Tso Tseng, Henry Peng, Kevin Yang
Patented Case
View Patent ↗
Granted: Aug 11, 1998
Filed: Feb 4, 1997
Inventors
Wen-Tso Tseng
Henry Peng
Kevin Yang
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.