Granted Patent
Utility
US 6,713,299 · App. 09/613,851
Apparatus for separating biological materials
Inventor:
Eiichi Sengoku
Patented Case
View Patent ↗
Granted: Mar 30, 2004
Filed: Jul 11, 2000
Inventor
Eiichi Sengoku
Assignee (at issue)
Sigma-Aldrich Co., LLC
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.