Granted Patent
Utility
US 5,387,490 · App. 08/096,662
Method of preparing a laminar thermal imaging medium
Inventors:
Iris B. K. Bloom, Richard A. Minns
Patented Case
View Patent ↗
Granted: Feb 7, 1995
Filed: Jul 23, 1993
Inventors
Iris B. K. Bloom
Richard A. Minns
Assignee (at issue)
Polaroid Corporation
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.