Granted Patent
Utility
US 4,238,219 · App. 05/879,963
Increasing chloroethylphosphonic acid-induced ethylene response
Inventors:
Robert E. Holm, Han San Ku
Patented Case
View Patent ↗
Granted: Dec 9, 1980
Filed: Feb 21, 1978
Inventors
Robert E. Holm
Han San Ku
Assignee (at issue)
Diamond Shamrock 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.