Granted Patent
Utility
US 5,658,534 · App. 08/170,630
Sonochemical apparatus
Inventors:
Colin Leonard Desborough, Roger B. Pike, Lawrence David Ward
Patented Case
View Patent ↗
Granted: Aug 19, 1997
Filed: Dec 21, 1993
Inventors
Colin Leonard Desborough
Roger B. Pike
Lawrence David Ward
Assignee (at issue)
AEA Technology PLC
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.