Granted Patent
Utility
US 6,042,264 · App. 08/976,260
Time-temperature indicator device and method of manufacture
Inventors:
Thaddeus Prusik, Raymond M. Arnold, Stephen Craig Fields
Patented Case
View Patent ↗
Granted: Mar 28, 2000
Filed: Nov 21, 1997
Inventors
Thaddeus Prusik
Raymond M. Arnold
Stephen Craig Fields
Assignee (at issue)
LifeLines Technology, 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.