Granted Patent
Utility
US 4,910,141 · App. 06/717,331
3'-expression enhancing fragments and method
Inventors:
Hing C. Wong, Shing Chang
Patented Case
View Patent ↗
Granted: Mar 20, 1990
Filed: Mar 29, 1985
Inventors
Hing C. Wong
Shing Chang
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.