Granted Patent
Utility
US 4,674,870 · App. 06/788,764
Laser alignment system with modulated field
Inventors:
Gary Cain, Sidney B. Goren
Patented Case
View Patent ↗
Granted: Jun 23, 1987
Filed: Oct 18, 1985
Inventors
Gary Cain
Sidney B. Goren
Assignee (at issue)
Spectra-Physics, 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.