Granted Patent
Utility
US 5,522,474 · App. 08/319,593
Apparatus and method for changing automatic transmission fluid
Inventor:
JERRY BURMAN
Patented Case
View Patent ↗
Granted: Jun 4, 1996
Filed: Oct 7, 1994
Inventor
JERRY BURMAN
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.