Granted Patent
Utility
US 5,717,939 · App. 08/558,248
Method and apparatus for entering and manipulating spreadsheet cell data
Inventors:
Daniel Bricklin, William T. Lynch, John Friend
Patented Case
View Patent ↗
Granted: Feb 10, 1998
Filed: Nov 17, 1995
Inventors
Daniel Bricklin
William T. Lynch
John Friend
Assignee (at issue)
Compaq Computer Corporation
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.