Granted Patent
Utility
US 5,371,971 · App. 08/057,266
Sash balance brake and pivot pin assembly
Inventor:
James G. Prete
Patented Case
View Patent ↗
Granted: Dec 13, 1994
Filed: May 4, 1993
Inventor
James G. Prete
Assignee (at issue)
Ashland Products, 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.