IP Library › Granted Patent US 4,594,636
Granted Patent Utility
US 4,594,636 · App. 06/534,242

Reactive load drive and surge protection

Inventors: Arthur Hamer, Beverley H. Pardoe
Patented Case View Patent ↗
Granted: Jun 10, 1986 Filed: Sep 21, 1983
Inventors
Arthur Hamer
Beverley H. Pardoe
Assignee (at issue)
NATIONAL RESEARCH DEVELOPMENT CORPORATION

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 4,594,636
App. No.
06/534,242
Filed
1983-09-21
Granted
1986-06-10
Kind
A