Granted Patent
Utility
US 4,944,964 · App. 07/359,623
Lacquer, and process for producing anti-corrosion coatings
Inventors:
Helmut Schmidt, Helmut Patzelt, Gerhard Tunker, Horst Scholze
Patented Case
View Patent ↗
Granted: Jul 31, 1990
Filed: May 31, 1989
Inventors
Helmut Schmidt
Helmut Patzelt
Gerhard Tunker
Horst Scholze
Assignee (at issue)
MAX PLANCK GESELLSCHAFT ZUR FÖRDERUNG DER WISSENSCHAFTEN EV
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.