IP Library › Granted Patent US 4,859,813
Granted Patent Utility
US 4,859,813 · App. 07/093,483

Digitizer tablet having electrical interconnect components on the writing substrate

Inventor: Lynn H. Rockwell
Patented Case View Patent ↗
Granted: Aug 22, 1989 Filed: Sep 4, 1987
Inventor
Lynn H. Rockwell
Assignee (at issue)
CalComp 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.

Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 4,859,813
App. No.
07/093,483
Filed
1987-09-04
Granted
1989-08-22
Kind
A