Granted Patent
Utility
US 6,287,470 · App. 09/403,770
Two-step method for dehydrating plastic dispersions
Inventors:
Heinz Vetter, Hartmut Schikowsky, Werner Hoess
Patented Case
View Patent ↗
Granted: Sep 11, 2001
Filed: Dec 13, 1999
Inventors
Heinz Vetter
Hartmut Schikowsky
Werner Hoess
Assignee (at issue)
Roehm GmbH
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.