Granted Patent
Utility
US 5,877,901 · App. 08/761,789
Super wide-angle zoom lens
Inventors:
Takashi Enomoto, Takayuki Ito
Patented Case
View Patent ↗
Granted: Mar 2, 1999
Filed: Dec 6, 1996
Inventors
Takashi Enomoto
Takayuki Ito
Assignee (at issue)
Asahi Kogaku Kogyo Kabushiki Kaisha
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.