Granted Patent
Utility
US 5,268,857 · App. 07/818,302
Device and method for approximating the square root of a number
Inventors:
Dao-Long Chen, Robert D. Waldron
Patented Case
View Patent ↗
Granted: Dec 7, 1993
Filed: Jan 8, 1992
Inventors
Dao-Long Chen
Robert D. Waldron
Assignee (at issue)
NCR 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.