Granted Patent
Utility
US 6,521,142 · App. 09/629,125
Fire-resistant hydraulic fluid compositions
Inventors:
Rosauro V. Holgado, Richard G. Adams, Chan Talaty
Patented Case
View Patent ↗
Granted: Feb 18, 2003
Filed: Aug 1, 2000
Inventors
Rosauro V. Holgado
Richard G. Adams
Chan Talaty
Assignee (at issue)
HOUGHTON TECHNICAL 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.