Granted Patent
Utility
US 6,274,155 · App. 09/512,918
Nonwoven sheet and film containing water absorbent keratin
Inventors:
Mark E. Van Dyke, Scott F. Timmons, Cheryl R. Blanchard, Arlene J. Siller-Jackson, Robert A. Smith
Patented Case
View Patent ↗
Granted: Aug 14, 2001
Filed: Feb 25, 2000
Inventors
Mark E. Van Dyke
Scott F. Timmons
Cheryl R. Blanchard
Arlene J. Siller-Jackson
Robert A. Smith
Assignee (at issue)
Keraplast Technologies, Ltd.
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.