Method and system accessing and rendering an image for transmission overa network
CA 2211368 A1 · Owner: Sutherland, Stephen B. · Inventors: Sutherland, Stephen B.; Gignac, John Paul J.; Radulovic, Sassa
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present method renders scan lines of an image to an output device in a memory efficient manner and in a manner suitable for a client server application using an Internet or Intranet type network. The image is defined by a number of order objects, each of which is independently stored. The procedure determines on a scan line basis the objects which influence the particular scan line and accumulates the rendering effect of the objects necessary for returning the scan line. Returned scan lines are transmitted over a network to a client computer and the procedure is repeated. Objects are only partially rendered as required to pass on the necessary information as input for the next object. …
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 July 24, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 24, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 24, 2019.
- 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.