Granted Patent
Utility
US 4,318,613 · App. 06/138,923
Universal light integrator/timer for photographic equipment
Inventor:
William P. Waiwood
Patented Case
View Patent ↗
Granted: Mar 9, 1982
Filed: Apr 10, 1980
Inventor
William P. Waiwood
Assignee (at issue)
nuArc Company, 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.