IP Library › Granted Patent US 4,627,468
Granted Patent Utility
US 4,627,468 · App. 06/771,291

Hydraulic control valve with manual override

Inventors: Raud A. Wilke, Michael J. Paik
Patented Case View Patent ↗
Granted: Dec 9, 1986 Filed: Aug 30, 1985
Inventors
Raud A. Wilke
Michael J. Paik
Assignee (at issue)
HUSCO International, 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 4,627,468
App. No.
06/771,291
Filed
1985-08-30
Granted
1986-12-09
Kind
A