Granted Patent
Utility
US 4,416,522 · App. 06/342,195
Daylight photoplotting and film therefor
Inventor:
Ronald B. Webster
Patented Case
View Patent ↗
Granted: Nov 22, 1983
Filed: Jan 25, 1982
Inventor
Ronald B. Webster
Assignee (at issue)
The Gerber Scientific Instrument Company
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.