Granted Patent
Utility
US 4,575,248 · App. 06/621,408
Wavefront sensor employing novel D.C. shearing interferometer
Inventors:
Bruce A. Horwitz, Alan J. MacGovern
Patented Case
View Patent ↗
Granted: Mar 11, 1986
Filed: Jun 18, 1984
Inventors
Bruce A. Horwitz
Alan J. MacGovern
Assignee (at issue)
I-TEK, 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.