Extruded zipper having combination stabilizing and differential opening means
CA 1302975 C · Owner: Ausnit, Steven · Inventors: Ausnit, Steven
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A bag closing separable fastener has a combination profile stabilizing and guiding and differential opening force enhancing post flange projecting from a base area along the outer side of a male profile and engagable with a base area alongside a complementary female profile. The post flange serves not only for stabilizing the male profile fastener strip but also as a, device for enhancing a hard-to-open from the inside and easy to open from the outside function of the fastener in respect to a bag with which associated. The male and female profile base areas and the post flange have substantially the same rigidity.
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
- Granted June 9, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 9, 2009.
- 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.