Granted Patent
Utility
US 4,456,567 · App. 06/511,126
3,9-Dichloro-2,4,8,10-tetraoxa-3,9-diphosphaspiro [5,5] undecane-9-oxide and process for preparing same
Inventors:
Ingenuin Hechenbleikner, William P. Enlow
Patented Case
View Patent ↗
Granted: Jun 26, 1984
Filed: Jul 6, 1983
Inventors
Ingenuin Hechenbleikner
William P. Enlow
Assignee (at issue)
BorgWarner Inc.
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.