Granted Patent
Utility
US 6,212,056 · App. 09/280,804
Micromachined variable capacitor
Inventors:
Peter Ledel Gammel, James A. Walker
Patented Case
View Patent ↗
Granted: Apr 3, 2001
Filed: Mar 26, 1999
Inventors
Peter Ledel Gammel
James A. Walker
Assignee (at issue)
LUCENT TECHNOLOGIES INC.
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.