Granted Patent
Utility
US 5,924,243 · App. 08/891,654
Rotor for a sash balance brake and pivot pin assembly
Inventors:
Allen D. Polowinczak, Mark V. Murphy, James G. Prete
Patented Case
View Patent ↗
Granted: Jul 20, 1999
Filed: Jul 11, 1997
Inventors
Allen D. Polowinczak
Mark V. Murphy
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.