Granted Patent
Utility
US 5,370,740 · App. 08/130,333
Chemical decomposition by sonication in liquid carbon dioxide
Inventors:
Sidney C. Chao, Edna M. Purer
Patented Case
View Patent ↗
Granted: Dec 6, 1994
Filed: Oct 1, 1993
Inventors
Sidney C. Chao
Edna M. Purer
Assignee (at issue)
Hughes Aircraft Company
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.