Granted Patent
Utility
US 4,666,848 · App. 06/646,709
Polypeptide expression using a portable temperature sensitive control cassette with a positive retroregulatory element
Inventors:
David H. Gelfand, Shing Chang, Hing C. Wong
Patented Case
View Patent ↗
Granted: May 19, 1987
Filed: Aug 31, 1984
Inventors
David H. Gelfand
Shing Chang
Hing C. Wong
Assignee (at issue)
Cetus 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.