Granted Patent
Utility
US 4,291,057 · App. 06/054,212
Biocidal esters of halo-4-alkenoic acids
Inventor:
Thomas N. Wheeler
Patented Case
View Patent ↗
Granted: Sep 22, 1981
Filed: Jul 2, 1979
Inventor
Thomas N. Wheeler
Assignee (at issue)
Union Carbide 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.