Granted Patent
Utility
US 5,331,972 · App. 07/984,748
Bone marrow biopsy, aspiration and transplant needles
Inventors:
Suresh Wadhwani, Greg Smith
Patented Case
View Patent ↗
Granted: Jul 26, 1994
Filed: Dec 3, 1992
Inventors
Suresh Wadhwani
Greg Smith
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.