Granted Patent
Utility
US 4,902,676 · App. 06/912,947
Compositions comprising N,N-dialkylalkanamides
Inventors:
James V. Peck, Gevork Minaskanian
Patented Case
View Patent ↗
Granted: Feb 20, 1990
Filed: Sep 29, 1986
Inventors
James V. Peck
Gevork Minaskanian
Assignee (at issue)
Nelson Research & Development Company
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.