Granted Patent
Utility
US 4,287,149 · App. 05/943,857
Process for the production of polymer materials
Inventors:
Giancarlo Capaccio, Ian MacMillan Ward
Patented Case
View Patent ↗
Granted: Sep 1, 1981
Filed: Sep 19, 1978
Inventors
Giancarlo Capaccio
Ian MacMillan Ward
Assignee (at issue)
NATIONAL RESEARCH 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.