IP Library › Granted Patent US 5,032,772
Granted Patent Utility
US 5,032,772 · App. 07/445,507

Motor driver circuit for resonant linear cooler

Inventors: Wilfred J. Gully, Paul Okada
Patented Case View Patent ↗
Granted: Jul 16, 1991 Filed: Dec 4, 1989
Inventors
Wilfred J. Gully
Paul Okada

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 5,032,772
App. No.
07/445,507
Filed
1989-12-04
Granted
1991-07-16
Kind
A