Granted Patent
Utility
US 4,929,745 · App. 07/227,231
Transhalogenation of halophosphorus compounds
Inventors:
Kestutis A. Keblys, Meng-Sheng Ao, Lester P. J. Burton
Patented Case
View Patent ↗
Granted: May 29, 1990
Filed: Aug 1, 1988
Inventors
Kestutis A. Keblys
Meng-Sheng Ao
Lester P. J. Burton
Assignee (at issue)
Ehtyl 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.