Granted Patent
Utility
US 5,218,633 · App. 07/834,053
Enhanced access to telecommunications network
Inventors:
Donald J. Clagett, Kenneth W. Clark, Ann M. E. Courtemanche, Walter D. Moran
Patented Case
View Patent ↗
Granted: Jun 8, 1993
Filed: Feb 11, 1992
Inventors
Donald J. Clagett
Kenneth W. Clark
Ann M. E. Courtemanche
Walter D. Moran
Assignee (at issue)
Bell Atlantic Network Services
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.