Granted Patent
Utility
US 4,970,239 · App. 07/433,803
Method for controlling macroinvertebrates utilizing decylthioethylamine
Inventors:
Wilson K. Whitekettle, Larry A. Lyons
Patented Case
View Patent ↗
Granted: Nov 13, 1990
Filed: Nov 9, 1989
Inventors
Wilson K. Whitekettle
Larry A. Lyons
Assignee (at issue)
Betz Laboratories, 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.