Tubular film bag package, in particular for sanitary towels and the like
CA 2105663 A1 · Owner: Barkhorn, Gerald · Inventors: Barkhorn, Gerald
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention concerns a tubular bag packing for ban-, dage-like materials in particular consisting of a web of, foil whose opposite borders are glued or welded together along a longitudinal seam to form a tube enveloping the material to be packed and which is hermetically sealed at its ends by means of two parallel transverse seams and which exhibits at least one aid to opening enabling it to, be torn open quickly and completely in order to remove the contents, that is characterized in that one longitudinal strip (10) of the web of foil (11) projects loosely beyond the longitudinal seam (5) and that this is formed into comparatively short, continuously recurring longitudinal spaces (A1, …
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 February 26, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 26, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 26, 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.