Granted Patent
Utility
US 4,737,463 · App. 06/786,407
Photoactivatable time-temperature indicator
Inventors:
Himangshu R. Bhattacharjee, James T. Yardley, Thaddeus Prusik, Ronald R. Chance
Patented Case
View Patent ↗
Granted: Apr 12, 1988
Filed: Oct 9, 1985
Inventors
Himangshu R. Bhattacharjee
James T. Yardley
Thaddeus Prusik
Ronald R. Chance
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.