Granted Patent
Utility
US 4,151,147 · App. 05/874,677
Process for preparing all-acrylic copolymer latex
Inventors:
Chris F. Neuschwanter, Eli Levine
Patented Case
View Patent ↗
Granted: Apr 24, 1979
Filed: Feb 2, 1978
Inventors
Chris F. Neuschwanter
Eli Levine
Assignee (at issue)
Celanese GmbH
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.