Skid for a raisable-curtain goods-handling door
CA 2062495 A1 · Owner: Kraeutler, Bernard · Inventors: Kraeutler, Bernard; Kraeutler, Bernard
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A sliding skid for the end of a reinforcing bar of a curtain of a raisable-curtain goods-handling door of the type comprising a curtain and a rigid door frame including two vertical lateral uprights disposed on either side of the door forming or containing slideways, and interconnected at their top ends by a horizontal cross-member, said curtain being capable of being lowered or raised between the uprights to be collected together at the top of the door and being reinforced, by equidistant horizontal reinforcing bars the edges of the, curtain and the ends of the reinforcing bars sliding in the slideways, the bars being disposed in sheaths formed by localized double thicknesses of the …
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 9, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 9, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 9, 2014.
- 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.