Granted Patent
Utility
US 5,476,490 · App. 08/241,160
Heating pad
Inventor:
Brian H. Silver
Patented Case
View Patent ↗
Granted: Dec 19, 1995
Filed: May 10, 1994
Inventor
Brian H. Silver
Assignee (at issue)
MEDELA HOLDING AG
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.