Granted Patent
Utility
US 5,133,601 · App. 07/714,215
Rough surface profiler and method
Inventors:
Donald K. Cohen, Paul J. Caber, Chris P. Brophy
Patented Case
View Patent ↗
Granted: Jul 28, 1992
Filed: Jun 12, 1991
Inventors
Donald K. Cohen
Paul J. Caber
Chris P. Brophy
Assignee (at issue)
Wyko, 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.