Granted Patent
Utility
US 4,250,113 · App. 06/069,589
Chemical compounds
Inventors:
Vegard Nordal, Hugo Holtermann
Patented Case
View Patent ↗
Granted: Feb 10, 1981
Filed: Aug 24, 1979
Inventors
Vegard Nordal
Hugo Holtermann
Assignee (at issue)
Nyegaard & Co. A/S
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.