Granted Patent
Utility
US 6,544,548 · App. 09/638,643
Keratin-based powders and hydrogel for pharmaceutical applications
Inventors:
Arlene J. Siller-Jackson, Mark E. Van Dyke, Scott F. Timmons, Cheryl R. Blanchard, Robert A. Smith
Patented Case
View Patent ↗
Granted: Apr 8, 2003
Filed: Aug 14, 2000
Inventors
Arlene J. Siller-Jackson
Mark E. Van Dyke
Scott F. Timmons
Cheryl R. Blanchard
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.