Granted Patent
Utility
US 5,691,441 · App. 08/728,922
Spandex elastomers
Inventors:
Stephen D. Seneker, Bruce D. Lawrey
Patented Case
View Patent ↗
Granted: Nov 25, 1997
Filed: Oct 11, 1996
Inventors
Stephen D. Seneker
Bruce D. Lawrey
Assignee (at issue)
Arco Chemical Technology, L.P.
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.