Structured multi-purpose packings and their use
CA 2358637 A1 · Owner: Ec Erdolchemie Gmbh · Inventors: Muller, Stephan; Grub, Joachim; Gohrt, Axel
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The versatile multi-purpose packing with the special structure has at least twofold, functionality and contains material separation elements and second functionality, elements provided in alternate layers wherein the material separation , elements have a profiled surface, and each of the second functionality elements has two or, more closed chambers provided on top of each other and filled with a physically, chemically or biologically active packing material in terms of the second functional-, ity.
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 October 11, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 11, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 11, 2023.
- 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.