Granted Patent
Utility
US 6,690,519 · App. 10/229,131
High-magnification zoom lens system
Inventor:
Hiroyasu Ozaki
Patented Case
View Patent ↗
Granted: Feb 10, 2004
Filed: Aug 28, 2002
Inventor
Hiroyasu Ozaki
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.