Apparatus for manufacturing an adjustable covering for architectural openings
CA 2275812 A1 · Owner: Hunter Douglas Inc. · Inventors: Hartman, David; Colson, Wendell B.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An apparatus is disclosed for fabricating a laminate product having a pair of sheet, materials spaced by a plurality of flexible parallel vanes which are secured to the sheet material, so that planar movement of the sheet materials in opposite directions cause the vanes to shift, between open and closed positions. The vane material is formed from a web of material by, dyeing the material, drying the dyed material applying spaced longitudinally , extending lines of adhesive on opposite faces of the material and cutting the material into a , plurality of side-by-side strips with each strip having a bead of adhesive on each face and along opposite side, edges. The cut material with …
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 June 21, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 21, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 21, 2021.
- 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.