Granted Patent
Utility
US 6,674,445 · App. 09/628,850
Generalized, differentially encoded, indexed raster vector data and schema for maps on a personal digital assistant
Inventors:
Nemmara Chithambaram, Howard Marantz
Patented Case
View Patent ↗
Granted: Jan 6, 2004
Filed: Jul 31, 2000
Inventors
Nemmara Chithambaram
Howard Marantz
Assignee (at issue)
AUTODESK, INC.
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.