Granted Patent
Utility
US 4,637,690 · App. 06/365,646
Telecentric zoom lens system
Inventors:
Hiroshi Miyamae, Makoto Banno
Patented Case
View Patent ↗
Granted: Jan 20, 1987
Filed: Apr 5, 1982
Inventors
Hiroshi Miyamae
Makoto Banno
Assignee (at issue)
Konishiroku Photo Industry Co., Ltd.
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.