Granted Patent
Utility
US 6,137,440 · App. 08/963,962
Microwave active solid state cold/warm noise source
Inventors:
Robert S. Roeder, Matthew C. Smith
Patented Case
View Patent ↗
Granted: Oct 24, 2000
Filed: Nov 4, 1997
Inventors
Robert S. Roeder
Matthew C. Smith
Assignee (at issue)
Raytheon Company
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.