Granted Patent
Utility
US 6,221,964 · App. 09/425,210
Foamable polymeric composition
Inventors:
Ryszard Brzoskowski, Mohammed R Sadeghi, Yundong Wang
Patented Case
View Patent ↗
Granted: Apr 24, 2001
Filed: Oct 22, 1999
Inventors
Ryszard Brzoskowski
Mohammed R Sadeghi
Yundong Wang
Assignee (at issue)
DSM N.V.
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.