Granted Patent
Utility
US 4,436,719 · App. 06/391,650
Microencapsulated insecticidal persistency through the use of gelatin
Inventor:
Harold L. Lindaberry
Patented Case
View Patent ↗
Granted: Mar 13, 1984
Filed: Jun 24, 1982
Inventor
Harold L. Lindaberry
Assignee (at issue)
Pennwalt Corporation
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.