Granted Patent
Utility
US 5,511,040 · App. 08/384,778
Method for calculating the optimum vibrator spacing for ground roll reduction
Inventor:
David Lee Nyland
Patented Case
View Patent ↗
Granted: Apr 23, 1996
Filed: Feb 6, 1995
Inventor
David Lee Nyland
Assignee (at issue)
Western Atlas International, 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.