Granted Patent
Utility
US 6,503,453 · App. 09/549,982
Device for collecting a blood sample from a plastic segment tube
Inventor:
William E. Sagstetter
Patented Case
View Patent ↗
Granted: Jan 7, 2003
Filed: Apr 14, 2000
Inventor
William E. Sagstetter
Assignee (at issue)
Baxter International 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.