IP Library › Granted Patent US 4,185,217
Granted Patent Utility
US 4,185,217 · App. 05/587,701

Three pole electric motor

Inventors: Stefan Grosu, Vasile Preda
Patented Case View Patent ↗
Granted: Jan 22, 1980 Filed: Jun 17, 1975
Inventors
Stefan Grosu
Vasile Preda
Assignee (at issue)
Institutul de Cercetare si Proiectare Pentru Industria Electrotehnica

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 4,185,217
App. No.
05/587,701
Filed
1975-06-17
Granted
1980-01-22
Kind
A