Granted Patent
Utility
US 4,795,253 · App. 07/042,121
Remote sensing gas analyzer
Inventors:
Robert L. Sandridge, Robert N. Hunt
Patented Case
View Patent ↗
Granted: Jan 3, 1989
Filed: Apr 24, 1987
Inventors
Robert L. Sandridge
Robert N. Hunt
Assignee (at issue)
Mobay 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.