Granted Patent
Utility
US 5,964,321 · App. 08/638,526
Ball joint piston bore caliper
Inventor:
George H. Hinkens
Patented Case
View Patent ↗
Granted: Oct 12, 1999
Filed: Apr 26, 1996
Inventor
George H. Hinkens
Assignee (at issue)
Hayes Brake, LLC
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.