IP Library › Granted Patent US 5,970,146
Granted Patent Utility
US 5,970,146 · App. 08/822,068

Data encrypted touchscreen

Inventors: Don Charles McCall, David A. Biedermann
Patented Case View Patent ↗
Granted: Oct 19, 1999 Filed: Mar 24, 1997
Inventors
Don Charles McCall
David A. Biedermann
Assignee (at issue)
Dresser Industries, 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 5,970,146
App. No.
08/822,068
Filed
1997-03-24
Granted
1999-10-19
Kind
A