IP Library Granted Patent US 4,800,313
Granted Patent Utility
US 4,800,313 · App. 07/113,849

Long-life motor brush holder

Inventors: Robin L. Warner, Richard E. DeSisto
Patented Case View Patent ↗
Granted: Jan 24, 1989 Filed: Oct 29, 1987
Inventors
Robin L. Warner
Richard E. DeSisto
Assignee (at issue)
Federal Signal Corporation

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 4,800,313
App. No.
07/113,849
Filed
1987-10-29
Granted
1989-01-24
Kind
A