Granted Patent
Utility
US 5,677,799 · App. 08/753,333
Lens assembly with adjustable focusing arrangement
Inventor:
Shyi-Yuan Huang
Patented Case
View Patent ↗
Granted: Oct 14, 1997
Filed: Nov 22, 1996
Inventor
Shyi-Yuan Huang
Assignee (at issue)
Silitek 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.