IP Library Granted Patent US 4,491,794
Granted Patent Utility
US 4,491,794 · App. 06/437,670

Hall effect device test circuit

Inventors: William Daley, Hendrik W. Van Husen
Patented Case View Patent ↗
Granted: Jan 1, 1985 Filed: Oct 29, 1982
Inventors
William Daley
Hendrik W. Van Husen
Assignee (at issue)
GTE Automatic Electric Incorporated

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 4,491,794
App. No.
06/437,670
Filed
1982-10-29
Granted
1985-01-01
Kind
A