Granted Patent
Utility
US 5,117,113 · App. 07/549,156
Direct reading dosimeter
Inventors:
Ian Thomson, Gary F. MacKay, Martin Peter Brown
Patented Case
View Patent ↗
Granted: May 26, 1992
Filed: Jul 6, 1990
Inventors
Ian Thomson
Gary F. MacKay
Martin Peter Brown
Assignee (at issue)
Thompson and Nielson Electronics Ltd.
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.