Granted Patent
Utility
US 4,233,339 · App. 05/953,716
Method for making electrochromic films having improved etch resistance
Inventors:
Marshall Leibowitz, Richard S. Crandall, Brian Wilfred Faughnan
Patented Case
View Patent ↗
Granted: Nov 11, 1980
Filed: Oct 23, 1978
Inventors
Marshall Leibowitz
Richard S. Crandall
Brian Wilfred Faughnan
Assignee (at issue)
Timex Corporation
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.