Granted Patent
Utility
US 4,528,930 · App. 06/510,354
Stabilized underwater apparatus for being towed or tethered
Inventors:
Trevor I. Silvey, Peter J. Merry
Patented Case
View Patent ↗
Granted: Jul 16, 1985
Filed: Jul 1, 1983
Inventors
Trevor I. Silvey
Peter J. Merry
Assignee (at issue)
Plessey Overseas Limited
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.