Granted Patent
Utility
US 4,258,794 · App. 06/038,541
Underwater completion habitat
Inventors:
Phillip S. Sizer, Joseph L. Pearce, Sanford R. Dowden
Patented Case
View Patent ↗
Granted: Mar 31, 1981
Filed: May 14, 1979
Inventors
Phillip S. Sizer
Joseph L. Pearce
Sanford R. Dowden
Assignee (at issue)
Otis Engineering Corporation
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.