Wireless pager with separable receiver unit and transmitter unit
CA 2184186 C · Owner: Motorola, Inc. · Inventors: Stuckman, Bruce Edward; Perttunen, Cary Drake; Jambhekar, Shrirang Nilkanth
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A receiver (14) re-, ceives at least one message containing a visual, message. A display device (16), in communica-, tion with the receiver (14) displays the visual mes-, sage of a selected one of the at least one message. , A first housing (20) houses the receiver and the dis-, play device to form a selfcontained, viable receiver, unit (10). A camera (22) captures at least one im-, age. A transmitter (24) transmits a signal based, upon the at least one image captured by the cam-, era (22). A second housing (26) houses the camera (22) and the transmitter (24) to form a self-contained viable transmitter unit (12). The second housing (26) is selectively attachable and detachable from the …
Read the whole patent
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
- Filed November 13, 1995 and granted February 23, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 13, 2015.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 13, 2017.
- 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.