IP Library › Granted Patent US 4,522,371
Granted Patent Utility
US 4,522,371 · App. 06/506,138

Proportional solenoid valve

Inventors: Clarence D. Fox, Tibor Baron
Patented Case View Patent ↗
Granted: Jun 11, 1985 Filed: Jun 20, 1983
Inventors
Clarence D. Fox
Tibor Baron
Assignee (at issue)
BorgWarner Inc.

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 4,522,371
App. No.
06/506,138
Filed
1983-06-20
Granted
1985-06-11
Kind
A