Granted Patent
Utility
US 6,795,252 · App. 10/114,306
Lens barrel
Inventors:
Tamotsu Koiwai, Ai Midorikawa
Patented Case
View Patent ↗
Granted: Sep 21, 2004
Filed: Apr 1, 2002
Inventors
Tamotsu Koiwai
Ai Midorikawa
Assignee (at issue)
OLYMPUS 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.