Granted Patent
Utility
US 4,778,613 · App. 06/813,296
Spirodiphosphate-containing working substances
Inventors:
Lee Cherney, Yuval Halpern, Roger K. Nibert
Patented Case
View Patent ↗
Granted: Oct 18, 1988
Filed: Dec 24, 1985
Inventors
Lee Cherney
Yuval Halpern
Roger K. Nibert
Assignee (at issue)
Borg-Warner Chemicals, 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.