Granted Patent
Utility
US 5,178,643 · App. 07/703,415
Process for plating super abrasive materials onto a honing tool
Inventor:
John J. Schimweg
Patented Case
View Patent ↗
Granted: Jan 12, 1993
Filed: May 21, 1991
Inventor
John J. Schimweg
Assignee (at issue)
Sunnen Products Company
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.