MCX
Filed: October 3, 1983
Programmable Telephone Call Accounting Unit
Owned by: Summa Four, Inc.
Serial Number: 73446319
PCX
Filed: October 3, 1983
Programmable Telephone Call Accounting Unit
Owned by: Summa Four, Inc.
Serial Number: 73446320
PTMS
Filed: June 13, 1985
PROCESSOR-CONTROLLED TELEPHONE CALL ACCOUNTING UNITS
Owned by: Summa Four, Inc.
Serial Number: 73542740
PTSS
Filed: June 13, 1985
ELECTRONIC COMPUTER PROCESSOR-CONTROLLED PAY TELEPHONE CALL ACCOUNTING UNITS
Owned by: Summa Four, Inc.
Serial Number: 73542935
SUMMA LINK
Filed: January 13, 1986
COMPUTER PROGRAMS FOR USE IN TELEPHONE CALL ACCOUNTING APPLICATIONS
Owned by: Summa Four, Inc.
Serial Number: 73577234
CO-STAR
Filed: September 10, 1986
TELEPHONE CALL ACCOUNTING AND MANAGEMENT SYSTEM FOR PERSONAL COMPUTER COMPRISING COMPUTER PROGRAMS, MICRO-COMPUTER PROCESSORS…
Owned by: Summa Four, Inc.
Serial Number: 73619226
VIRTUAL CENTRAL OFFICE
Filed: May 3, 1993
electronic telephone switches
Owned by: Summa Four, Inc.
Serial Number: 74386534
MINIMIB
Filed: June 21, 1993
telephone network monitoring equipment comprised of computer hardware and software
Owned by: Summa Four, Inc.
Serial Number: 74405127
SPIRE
Filed: June 21, 1993
application generation software
Owned by: Summa Four, Inc.
Serial Number: 74405128
TELEROUTER
Filed: June 21, 1993
computer software for executing telephone call processing functions
Owned by: Summa Four, Inc.
Serial Number: 74405136
VIRTUAL TELEPROCESSING, INC.
Filed: April 26, 1994
enhanced telecommunication services
Owned by: Summa Four, Inc.
Serial Number: 74517657
