Granted Patent
Utility
US 5,776,881 · App. 08/678,467
Enhanced solvent composition
Inventor:
Esfandiar Kiany
Patented Case
View Patent ↗
Granted: Jul 7, 1998
Filed: Jul 3, 1996
Inventor
Esfandiar Kiany
Assignee (at issue)
SAFETY KLEEN 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.