Suspension support device for an outer wall working machine
CA 2200400 A1 · Owner: Ohtsuki, Shigeru · Inventors: Jun, Huang Jian; Kawahara, Mitsuru; Ohtsuki, Shigeru
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A suspension support device is provided movably on the upper surface of a building for suspending by means, of ropes, an outer wall working machine having fitting and moving members which can be fittedly engaged in a pair of guide grooves formed vertically on an outer wall surface of the building, and lowering and lifting the outer wall working machine along the guide grooves. The device includes a main body, an arm structure connected to the main body, a holding unit connected to the arm structure in a manner to be movable forwardly and rearwardly, laterally and pivotable about a vertical axis and including a pair of holding guides provided at an interval equal to an interval of the pair …
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 March 19, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 19, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 19, 2019.
- 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.