IP Library › Granted Patent US 5,355,221
Granted Patent Utility
US 5,355,221 · App. 08/143,372

Rough surface profiler and method

Inventors: Donald K. Cohen, Paul J. Caber, Chris P. Brophy
Patented Case View Patent ↗
Granted: Oct 11, 1994 Filed: Oct 25, 1993
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.

Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 5,355,221
App. No.
08/143,372
Filed
1993-10-25
Granted
1994-10-11
Kind
A