Granted Patent
Utility
US 5,920,618 · App. 08/758,518
Apparatus and method for managing telephony-based services
Inventors:
Harold C. Fleischer, III, William Plunkett
Patented Case
View Patent ↗
Granted: Jul 6, 1999
Filed: Nov 29, 1996
Inventors
Harold C. Fleischer, III
William Plunkett
Assignee (at issue)
SBC Technology Resources 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.