Granted Patent
Utility
US 5,452,088 · App. 08/210,671
Multimode-laser interferometric apparatus for eliminating background interference fringes from thin-plate measurements
Inventor:
Chiayu Ai
Patented Case
View Patent ↗
Granted: Sep 19, 1995
Filed: Mar 18, 1994
Inventor
Chiayu Ai
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.