Granted Patent
Utility
US 4,342,666 · App. 06/255,611
Enhancement of trilithium phosphate catalyst activity
Inventor:
Donald Hardy, Sr.
Patented Case
View Patent ↗
Granted: Aug 3, 1982
Filed: Apr 20, 1981
Inventor
Donald Hardy, Sr.
Assignee (at issue)
FMC 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.