Granted Patent
Utility
US 6,232,405 · App. 09/496,472
SMA resin amic acids
Inventors:
John Schmidhauser, Lisa M. Hahn
Patented Case
View Patent ↗
Granted: May 15, 2001
Filed: Feb 2, 2000
Inventors
John Schmidhauser
Lisa M. Hahn
Assignee (at issue)
ATOFINA Chemicals, 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.