Granted Patent
Utility
US 5,993,285 · App. 08/847,049
Teething device
Inventors:
Susan Sofia, Deborah H. Levenson
Patented Case
View Patent ↗
Granted: Nov 30, 1999
Filed: May 1, 1997
Inventors
Susan Sofia
Deborah H. Levenson
Assignee (at issue)
The First Years 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.