Granted Patent
Utility
US 4,477,571 · App. 06/346,258
Chimeric plasmids that replicate in bacteria and yeast and microorganisms transformed therewith
Inventors:
Shing Chang, James H. Meade
Patented Case
View Patent ↗
Granted: Oct 16, 1984
Filed: Feb 5, 1982
Inventors
Shing Chang
James H. Meade
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.