Granted Patent
Utility
US 4,536,069 · App. 06/548,057
Two rotary blade camera shutter
Inventor:
Serge Kunica
Patented Case
View Patent ↗
Granted: Aug 20, 1985
Filed: Nov 2, 1983
Inventor
Serge Kunica
Assignee (at issue)
I-TEK, Inc.
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.