Granted Patent
Utility
US 5,202,532 · App. 07/747,393
Autonomous acoustic detonation device
Inventors:
Steven A. Haglund, Dennis L. Kurschner, Kenneth W. Paulson
Patented Case
View Patent ↗
Granted: Apr 13, 1993
Filed: Aug 16, 1991
Inventors
Steven A. Haglund
Dennis L. Kurschner
Kenneth W. Paulson
Assignee (at issue)
Alliant Techsystems 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.