Granted Patent
Utility
US 6,047,894 · App. 08/548,436
Signal conditioning for variable focus optical reader
Inventors:
Thomas C. Arends, Randy D. Elliott
Patented Case
View Patent ↗
Granted: Apr 11, 2000
Filed: Oct 26, 1995
Inventors
Thomas C. Arends
Randy D. Elliott
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.