IP Library Granted Patent US 4,575,248
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.

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 4,575,248
App. No.
06/621,408
Filed
1984-06-18
Granted
1986-03-11
Kind
A