IP Library Granted Patent US 4,827,981
Granted Patent Utility
US 4,827,981 · App. 07/233,440

Fail-fixed servovalve with controlled hard-over leakage

Inventors: Ronald J. Livecchi, Donald J. Peters
Patented Case View Patent ↗
Granted: May 9, 1989 Filed: Aug 9, 1988
Inventors
Ronald J. Livecchi
Donald J. Peters
Assignee (at issue)
Moog 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 4,827,981
App. No.
07/233,440
Filed
1988-08-09
Granted
1989-05-09
Kind
A