Granted Patent
Utility
US 6,584,861 · App. 09/678,759
Transmitting and receiving circuit for ultrasonic flowmeter
Inventor:
Lars Jespersen
Patented Case
View Patent ↗
Granted: Jul 1, 2003
Filed: Oct 3, 2000
Inventor
Lars Jespersen
Assignee (at issue)
DANFOSS A/S
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.