IP Library Granted Patent US 4,200,003
Granted Patent Utility
US 4,200,003 · App. 05/917,136

Magnetic viscous damper

Inventor: Donald L. Miller
Patented Case View Patent ↗
Granted: Apr 29, 1980 Filed: Jun 19, 1978
Inventor
Donald L. Miller
Assignee (at issue)
Facet Enterprises, Incorporated

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 4,200,003
App. No.
05/917,136
Filed
1978-06-19
Granted
1980-04-29
Kind
A