Granted Patent
Utility
US 4,538,229 · App. 06/474,149
System for preparing aircraft driftdown plans
Inventors:
Karen L. Baltzer, Jan Peterson
Patented Case
View Patent ↗
Granted: Aug 27, 1985
Filed: Mar 10, 1983
Inventors
Karen L. Baltzer
Jan Peterson
Assignee (at issue)
Kavouras, 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.