Granted Patent
Utility
US 6,833,963 · App. 10/455,307
Zoom lens system
Inventor:
Takashi Enomoto
Patented Case
View Patent ↗
Granted: Dec 21, 2004
Filed: Jun 6, 2003
Inventor
Takashi Enomoto
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.