Granted Patent
Utility
US 4,927,432 · App. 06/843,881
Pad material for grinding, lapping and polishing
Inventors:
William D. Budinger, Elmer Jensen
Patented Case
View Patent ↗
Granted: May 22, 1990
Filed: Mar 25, 1986
Inventors
William D. Budinger
Elmer Jensen
Assignee (at issue)
Rodel Holdings, 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.