Granted Patent
Utility
US 6,528,641 · App. 09/771,256
Methods and reagents for preserving RNA in cell and tissue samples
Inventor:
Eric Lader
Patented Case
View Patent ↗
Granted: Mar 4, 2003
Filed: Jan 26, 2001
Inventor
Eric Lader
Assignee (at issue)
Ambion, 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.