Granted Patent
Utility
US 5,889,803 · App. 08/857,229
Resonator for electromagnetic waves with a stabilizer and method for stabilizing the length of the resonator
Inventors:
Thomas Pfeiffer, Gustav Veith
Patented Case
View Patent ↗
Granted: Mar 30, 1999
Filed: May 16, 1997
Inventors
Thomas Pfeiffer
Gustav Veith
Assignee (at issue)
Alcatel Alsthom
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.