Granted Patent
Utility
US 6,413,507 · App. 09/469,418
Hydrolytically degradable carbamate derivatives of poly (ethylene glycol)
Inventors:
Michael D. Bentley, Xuan Zhao
Patented Case
View Patent ↗
Granted: Jul 2, 2002
Filed: Dec 23, 1999
Inventors
Michael D. Bentley
Xuan Zhao
Assignee (at issue)
Shearwater Corporation
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.