Granted Patent
Utility
US 4,621,189 · App. 06/785,604
Hand held data entry apparatus
Inventors:
Rajendra Kumar, Robert F. Meyerson
Patented Case
View Patent ↗
Granted: Nov 4, 1986
Filed: Oct 8, 1985
Inventors
Rajendra Kumar
Robert F. Meyerson
Assignee (at issue)
TELXON CORPORATION
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.