Granted Patent
Utility
US 6,535,746 · App. 09/692,581
Method and apparatus supporting short message services in a wireless number portability environment
Inventors:
I-Hsiang Yu, May Y. Chan
Patented Case
View Patent ↗
Granted: Mar 18, 2003
Filed: Oct 19, 2000
Inventors
I-Hsiang Yu
May Y. Chan
Assignee (at issue)
Verizon Laboratories 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.