Granted Patent
Utility
US 5,342,918 · App. 08/054,165
Carboxyl-terminated polyetheramines
Inventors:
Richele T. Howelton, George P. Speranza
Patented Case
View Patent ↗
Granted: Aug 30, 1994
Filed: Apr 30, 1993
Inventors
Richele T. Howelton
George P. Speranza
Assignee (at issue)
Texaco Chemical 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.