Granted Patent
Utility
US 5,608,201 · App. 08/368,787
Method and apparatus for detecting edges in a signal obtained from a bar code scanned in the Fresnel zone
Inventor:
Edward P. Coleman
Patented Case
View Patent ↗
Granted: Mar 4, 1997
Filed: Jan 4, 1995
Inventor
Edward P. Coleman
Assignee (at issue)
PSC, 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.