Granted Patent
Utility
US 5,725,154 · App. 08/516,530
Dense fluid spray cleaning method and apparatus
Inventor:
David Jackson
Patented Case
View Patent ↗
Granted: Mar 10, 1998
Filed: Aug 18, 1995
Inventor
David Jackson
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.