Expired Canadian patentCanada
Water-hardening polymer preparation
CA 1341111 C · Owner: Jansen, Bernhard · Inventors: Mayer, Wolfram; Jansen, Bernhard; Richter, Roland
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Water-hardening polymer preparations for construction materials contain as additives polymer modifiers of the type of the polyether polysiloxane polyurethanes.
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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
- Granted October 10, 2000. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 10, 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.
FiledAugust 24, 1988
GrantedOctober 10, 2000
Term endedOctober 10, 2017
Patent numberCA 1341111 C
Classification (IPC)C08G77/46 +2 more
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.