Granted Patent
Utility
US 5,218,093 · App. 07/317,467
EGF variants and pharmaceutical use thereof
Inventors:
Zimin Guo, A. Michael Sills, Nigel A. Skipper
Patented Case
View Patent ↗
Granted: Jun 8, 1993
Filed: Mar 1, 1989
Inventors
Zimin Guo
A. Michael Sills
Nigel A. Skipper
Assignee (at issue)
Allelix BioPharmaceuticals, 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.