Granted Patent
Utility
US 4,178,153 · App. 05/853,435
Method and apparatus for chemical spot test analysis
Inventor:
Lester Sodickson
Patented Case
View Patent ↗
Granted: Dec 11, 1979
Filed: Nov 21, 1977
Inventor
Lester Sodickson
Assignee (at issue)
Damon 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.