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Patent Assignment Abstract of Title
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Total Assignments: 2
Patent #:
5093901
Issue Dt:
03/03/1992
Application #:
07252282
Filing Dt:
09/30/1988
Inventors:
CHARLES M. N. CREE, GRADY J. LANDRY, KEITH J. SCULLY, HARINDER SINGH
Title:
SYSTEM FOR EXCHANGING ELECTRONIC CALENDARS BASED ON ENTRIES AND CLASSIFICATION AMONG USERS OF THE SYSTEM
Assignment: 1
Reel/Frame:
004948/0898Recorded: 09/30/1988Pages: 2
Conveyance:
ASSIGNMENT OF ASSIGNORS INTEREST.
Assignors:
CREE, CHARLES M. N.
Exec Dt:
09/16/1988
LANDRY, GRADY J.
Exec Dt:
09/16/1988
SCULLY, KEITH J.
Exec Dt:
09/16/1988
SINGH, HARINDER
Exec Dt:
09/28/1988
Assignee:
INTERNATIONAL BUSINESS MACHINES CORPORATION, ARMONK, NEW YORK 10504, ACORP. OF NEW YORK
NEW YORK
Correspondent:
H. ST. JULIAN
IBM CORP.,
INTELLECTUAL PROPERTY LAW
11400 BURNET ROAD
AUSTIN, TX 78758
Assignment: 2
Reel/Frame:
010360/0897Recorded: 11/08/1999Pages: 2
Conveyance:
ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor:
INTERNATIONAL BUSINESS MACHINES CORPORATION
Exec Dt:
09/27/1999
Assignee:
PHONETEL COMMUNICATIONS, INC.
512 MAIN STREET, SUITE 1014, FORT WORTH, TEXAS 76102
512 MAIN STREET, SUITE 1014
FORTH WORTH, TEXAS 76102
Correspondent:
HILL & HUNN LLP
MELVIN A. HUNN
201 MAIN STREET, SUITE 1440
FORT WORTH, TEXAS 76102-3105

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