A method for transferring data in a wireless network
CA 2524082 C · Owner: Wang, Charles · Inventors: Wang, Charles; Gibbs, Fraser
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A process for transferring data packets through a protocol stack in a device for transmitting packets on a packet connection to a wireless network operating at least two, distinct wireless access technologies such as GSM/GPRS and UMTS. Each layer of a protocol stack for a currently active packet connection path provides confirmation to a next higher layer of successful reception of a data packet from that layer to confirm successful transfer of the data packet through the stack. The first layer stores a copy of a transferred packet until it receives confirmation from the next lower layer of successful transfer. Absent confirmation and when a switch (hand-off) to a new connection path occurs …
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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
- Filed October 21, 2005 and granted October 2, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 21, 2025.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
- 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.