Granted Patent
Utility
US 4,610,517 · App. 06/663,487
Clamp for lens hood
Inventors:
Kunihiro Fukino, Yoshiro Kotaka
Patented Case
View Patent ↗
Granted: Sep 9, 1986
Filed: Oct 22, 1984
Inventors
Kunihiro Fukino
Yoshiro Kotaka
Assignee (at issue)
Nippon Kogaku K.K.
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.