Granted Patent
Utility
US 4,829,924 · App. 06/887,536
Semi submersible device and method to set and salvage marine superstructures
Inventor:
Edward D. Dysarz
Patented Case
View Patent ↗
Granted: May 16, 1989
Filed: Jul 21, 1986
Inventor
Edward D. Dysarz
Assignee (at issue)
Dynovation Design & Engineering 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.