Agent for the protection of materials
CA 1281853 C · Owner: Paulus, Wilfried · Inventors: Schmitt, Hans-Georg; Fischler, Michael; Paulus, Wilfried
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Agent for the protection of materials, ABSTRACT OF THE DISCLOSURE An agent for the protection of material containing an N-sulphenylated benzenesulphonamide of the formula whereln, R1, and R2 and R3 independently of one another represent hydrogen, halogen, nitro, alkyl or halogenoalkyl and, R4 denotes an unsubstituted or substituted saturated or unsaturated, aliphatic or cycloaliphatic radical, the aliphatic radicals being uninterrupted or heteroatoms or being interrupted by one or more hetero-atoms. The N-sulphenylated benæenesulphonamide-containing agents are useful for protecting industrial materials, for example, paints and timber against attack by microorganisms, such as bacteria, …
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 March 26, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 26, 2008.
- 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.