Granted Patent
Utility
US 6,017,310 · App. 08/724,870
Use of hollow microcapsules
Inventors:
Richard A. Johnson, Nicolaas de Jong, Paulus Antonius van der Wouw
Patented Case
View Patent ↗
Granted: Jan 25, 2000
Filed: Oct 4, 1996
Inventors
Richard A. Johnson
Nicolaas de Jong
Paulus Antonius van der Wouw
Assignee (at issue)
Andaris Limited
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.