Granted Patent
Utility
US 4,749,067 · App. 06/927,588
Solenoid and spring operated brake
Inventor:
Howard C. Stevens, Jr.
Patented Case
View Patent ↗
Granted: Jun 7, 1988
Filed: Nov 6, 1986
Inventor
Howard C. Stevens, Jr.
Assignee (at issue)
Lift-Tech 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.