Granted Patent
Utility
US 5,947,447 · App. 08/953,544
Automotive service jack
Inventor:
Bradford Sorensen
Patented Case
View Patent ↗
Granted: Sep 7, 1999
Filed: Oct 21, 1997
Inventor
Bradford Sorensen
Assignee (at issue)
Alltrade Inc.
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.