Granted Patent
Utility
US 4,497,044 · App. 06/337,678
Seismic wave generator
Inventor:
Daniel Silverman
Patented Case
View Patent ↗
Granted: Jan 29, 1985
Filed: Jan 7, 1982
Inventor
Daniel Silverman
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.