Revolving door with a night closing panel
CA 2321749 A1 · Owner: Rockenbach, Manfred · Inventors: Rockenbach, Manfred
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a revolving door with several door panels (2 3, 4) , which rotate about a center axis (7) within a cylindrical wall limiting them. The invention is characterized in that one of said door panels or parts of said door panels can be detached from their operating position and can be swiveled and/or displaced into a position closing the entrance (E) and/or the exit (A) in the manner of a night closing panel.
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 December 16, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 16, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 16, 2020.
- 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.