IP Library › Granted Patent US 4,734,546
Granted Patent Utility
US 4,734,546 · App. 07/026,217

Digitizer system with loopback conductor grid

Inventor: Waldo L. Landmeier
Patented Case View Patent ↗
Granted: Mar 29, 1988 Filed: Mar 16, 1987
Inventor
Waldo L. Landmeier
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 4,734,546
App. No.
07/026,217
Filed
1987-03-16
Granted
1988-03-29
Kind
A