Granted Patent
Utility
US 4,137,265 · App. 05/110,599
Water-insoluble nitrogen-containing polyols
Inventors:
Gayle D. Edwards, Doris M. Rice, Robert L. Soulen
Patented Case
View Patent ↗
Granted: Jan 30, 1979
Filed: Jan 28, 1976
Inventors
Gayle D. Edwards
Doris M. Rice
Robert L. Soulen
Assignee (at issue)
Texaco Development 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.