Granted Patent
Utility
US 5,861,548 · App. 08/071,787
Apparatus and method utilizing signal modulation detection for analyzing the internal pressure of containers
Inventors:
Robert G. Melvin, II, Robert J. Ryan
Patented Case
View Patent ↗
Granted: Jan 19, 1999
Filed: May 1, 1998
Inventors
Robert G. Melvin, II
Robert J. Ryan
Assignee (at issue)
Benthos, 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.