Granted Patent
Utility
US 4,882,879 · App. 07/216,709
Flexible abrasive grinding tool
Inventors:
R. Brown Warner, Alfred F. Scheider
Patented Case
View Patent ↗
Granted: Nov 28, 1989
Filed: Jul 8, 1988
Inventors
R. Brown Warner
Alfred F. Scheider
Assignee (at issue)
Jason Incorporated
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.