Granted Patent
Utility
US 5,867,522 · App. 08/834,473
Autofocusing system for a laser transmitter
Inventors:
Francisco Roberto Green, Philip Detweiler, Frank Beard Douglas
Patented Case
View Patent ↗
Granted: Feb 2, 1999
Filed: Apr 11, 1997
Inventors
Francisco Roberto Green
Philip Detweiler
Frank Beard Douglas
Assignee (at issue)
Spectra Precision, 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.