Granted Patent
Utility
US 4,721,180 · App. 06/935,280
Marine seismic source array
Inventors:
Tor A. Haughland, Mark Houston, Philip Fontana
Patented Case
View Patent ↗
Granted: Jan 26, 1988
Filed: Nov 26, 1986
Inventors
Tor A. Haughland
Mark Houston
Philip Fontana
Assignee (at issue)
Western Atlas International, 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.