Granted Patent
Utility
US 5,978,313 · App. 08/941,646
Time synchronization for seismic exploration system
Inventor:
Harold L. Longaker
Patented Case
View Patent ↗
Granted: Nov 2, 1999
Filed: Sep 30, 1997
Inventor
Harold L. Longaker
Assignee (at issue)
Trimble Navigation 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.