Granted Patent
Utility
US 5,489,921 · App. 08/224,473
Method for generating uniform color area definitions with addition and removal operators
Inventors:
Peter Dorff, Joern Kowalewski, Sigrid Anni Lore Doehler, Uwe-Jens Krabbenhoeft
Patented Case
View Patent ↗
Granted: Feb 6, 1996
Filed: Apr 7, 1994
Inventors
Peter Dorff
Joern Kowalewski
Sigrid Anni Lore Doehler
Uwe-Jens Krabbenhoeft
Assignee (at issue)
Linotype-Hell AG
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.