Granted Patent
Utility
US 4,538,056 · App. 06/698,742
Card reader for time and attendance
Inventors:
Jorge A. Young, Bhupendra J. Khandwala
Patented Case
View Patent ↗
Granted: Aug 27, 1985
Filed: Feb 6, 1985
Inventors
Jorge A. Young
Bhupendra J. Khandwala
Assignee (at issue)
Figgie Inernational 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.