Granted Patent
Utility
US 5,490,436 · App. 08/214,728
Liquid-chamber apparatus for active, dynamic balancing of rotating machinery
Inventors:
James Christopher Coyne, Richard T. LaGrotta, Frank A. Magnotti, Frances Turbiak-Magnotti
Patented Case
View Patent ↗
Granted: Feb 13, 1996
Filed: Mar 17, 1994
Inventors
James Christopher Coyne
Richard T. LaGrotta
Frank A. Magnotti
Frances Turbiak-Magnotti
Assignee (at issue)
AT&T CORP.
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.