A method to delay locking of server files on edit
CA 2458247 C · Owner: Microsoft Technology Licensing, Llc · Inventors: Liu, Hai; Saliba, Hani; Edelstein, Noah
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A server is implemented with a modified file open action which, when a user performs the modified open initially opens a file without locking the file. When a user indicates (either explicitly or implicitly) that the user is attempting to or intending to open the file the file can then be locked for editing. In this way the default action when a user requests a file is to open the file without denying other users access to the file. Then when the user indicates that editing should occur the lock for the file is obtained.
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 February 17, 2004 and granted April 7, 2015. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 17, 2024.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 17, 2026.
- 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.