Granted Patent
Utility
US 6,553,839 · App. 10/064,188
Method for stimulating a sensor and measuring the sensor's output over a frequency range
Inventor:
David B. Board
Patented Case
View Patent ↗
Granted: Apr 29, 2003
Filed: Jun 20, 2002
Inventor
David B. Board
Assignee (at issue)
Swantech, L.L.C.
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.