Granted Patent
Utility
US 5,977,313 · App. 08/953,514
Platelet substitutes and conjugation methods suitable for their preparation
Inventors:
David Heath, Sarah Margaret Middleton, Roy Harris, Nicola Jane Church
Patented Case
View Patent ↗
Granted: Nov 2, 1999
Filed: Oct 17, 1997
Inventors
David Heath
Sarah Margaret Middleton
Roy Harris
Nicola Jane Church
Assignee (at issue)
Quadrant Healthcare, 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.