Message taking and retrieval system
CA 1257026 A · Owner: Wang Laboratories, Inc. · Inventors: Mcnutt, Anne E.M.; Schenkein, Robert M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A system for taking and retrieving telephone messages. The system is used with a PBX and includes a central computer operator, stations for taking telephone messages and retrieval stations, permitting retrieval of messages either locally or via a telephone call. The central computer includes a disk drive and is connected via a RS 232 link to the PBX. Information about parties having telephones connected to the PBX and messages in ASCII codes for those parties are stored on the disk drive. Each operator station includes a personal computer which is connected by an adapter to a telephone line from the PBX and by a data link to the central computer. The personal computer has a keyboard and …
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted July 4, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 4, 2006.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.