Granted Patent
Utility
US 6,407,747 · App. 09/307,547
Computer screen image magnification system and method
Inventors:
Charles K. Chui, Haishan Wang
Patented Case
View Patent ↗
Granted: Jun 18, 2002
Filed: May 7, 1999
Inventors
Charles K. Chui
Haishan Wang
Assignee (at issue)
PicSurf, 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.