Granted Patent
Utility
US 6,248,856 · App. 09/458,287
One-shot polyurethane elastomers with very low compression sets
Inventors:
Ashok M. Sarpeshkar, Peter H. Markusch, Robert L. Cline, Corrine M. Gilbert
Patented Case
View Patent ↗
Granted: Jun 19, 2001
Filed: Dec 10, 1999
Inventors
Ashok M. Sarpeshkar
Peter H. Markusch
Robert L. Cline
Corrine M. Gilbert
Assignee (at issue)
Bayer Aktiengesellschaft
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.