Granted Patent
Utility
US 4,702,808 · App. 06/712,411
Chemical reaction apparatus and method
Inventor:
Jerome H. Lemelson
Patented Case
View Patent ↗
Granted: Oct 27, 1987
Filed: Mar 15, 1985
Inventor
Jerome H. Lemelson
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.