Granted Patent
Utility
US 5,770,847 · App. 08/363,258
Bar code reader with multi-focus lens
Inventor:
Bryan L. Olmstead
Patented Case
View Patent ↗
Granted: Jun 23, 1998
Filed: Dec 23, 1994
Inventor
Bryan L. Olmstead
Assignee (at issue)
Spectra-Physics Scanning Systems, 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.