Granted Patent
Utility
US 6,506,368 · App. 10/066,922
Process for producing blue microcapsules
Inventors:
Rita Lages, Frank Aickele, Hubert Loges, Arnold Machinek
Patented Case
View Patent ↗
Granted: Jan 14, 2003
Filed: Feb 4, 2002
Inventors
Rita Lages
Frank Aickele
Hubert Loges
Arnold Machinek
Assignee (at issue)
Haarmann & Reimber 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.