IP Library › Granted Patent US 4,189,765
Granted Patent Utility
US 4,189,765 · App. 05/890,330

Digital controller

Inventors: Richard J. Kotalik, Dale E. Lupfer, Rique L. Pottenger
Patented Case View Patent ↗
Granted: Feb 19, 1980 Filed: Mar 27, 1978
Inventors
Richard J. Kotalik
Dale E. Lupfer
Rique L. Pottenger
Assignee (at issue)
ROBERTSHAW CONTROLS PRIVATE LIMITED

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 4,189,765
App. No.
05/890,330
Filed
1978-03-27
Granted
1980-02-19
Kind
A