Granted Patent
Utility
US 6,254,560 · App. 09/093,559
Cervical collars
Inventors:
Lisa Tweardy, Clay Burns, Karl T. Ulrich
Patented Case
View Patent ↗
Granted: Jul 3, 2001
Filed: Jun 8, 1998
Inventors
Lisa Tweardy
Clay Burns
Karl T. Ulrich
Assignee (at issue)
The Jerome Group
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.