File transfer mechanism
CA 2189773 C · Owner: Mcwilliams, Gavin · Inventors: Mcwilliams, Gavin
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In order to transfer a series of data files between two computers each computer is provided with a file transfer mechanism. The file transfer mechanism is responsible for the overall control of the transfer of the series of files. Each file transfer mechanism controls the transfer of a series of files in accordance with a protocol. In this protocol the computer receiving data files (the initiator) sends a poll request message (40) to the computer transmitting the data files (the responder). In response the responder sends a reply message (42) to the initiator containing a list of files which are available for transfer. From this list the initiator selects the files which it wishes to …
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 May 19, 1995 and granted April 30, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 19, 2015.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 19, 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.