Granted Patent
Utility
US 4,752,604 · App. 06/879,044
S,S-di-(tertiary alkyl) thiophosphonate insecticides
Inventors:
Charles G. Chavdarian, Lydia L. Chang, Bruce C. Onisko, Jonathan P. Earhart
Patented Case
View Patent ↗
Granted: Jun 21, 1988
Filed: Jul 3, 1986
Inventors
Charles G. Chavdarian
Lydia L. Chang
Bruce C. Onisko
Jonathan P. Earhart
Assignee (at issue)
Stauffer Chemical Company
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.