Organometal-containing polymers and use thereof
CA 1317060 C · Owner: Steinmann, Alfred · Inventors: Steinmann, Alfred
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
K-16673/+, Organometal-containing polymers and use thereof Abstract, Organometal-containing polymers having side chains of the formula I (I), in which, for example, M is Si, X is O R1 and R2 are hydrogen and R4, to R6 are each methyl and which have an average molecular weight between 1,000 and 1,000,000, are suitable for the preparation of dry-developable photoresists, such as are required for the generation of structured images, in particular in microelectronics.
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
- Granted April 27, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 27, 2010.
- 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.