Granted Patent
Utility
US 5,232,742 · App. 07/883,737
Spin finish composition
Inventor:
Kalidas Chakravarti
Patented Case
View Patent ↗
Granted: Aug 3, 1993
Filed: May 15, 1992
Inventor
Kalidas Chakravarti
Assignee (at issue)
Bridgestone Firestone
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.