Granted Patent
Utility
US 6,517,575 · App. 09/609,584
Multilayer liquid absorption and deformation devices
Inventors:
Dachuan Yang, Lixiao Wang
Patented Case
View Patent ↗
Granted: Feb 11, 2003
Filed: Jun 30, 2000
Inventors
Dachuan Yang
Lixiao Wang
Assignee (at issue)
Scimed Life Systems, 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.