Granted Patent
Utility
US 5,406,231 · App. 08/081,296
Oscillator unit with improved frequency stability
Inventor:
Raimo Jylha
Patented Case
View Patent ↗
Granted: Apr 11, 1995
Filed: Jun 28, 1993
Inventor
Raimo Jylha
Assignee (at issue)
Nokia Telecommunications Oy
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.