Waterproof slide fastener
CA 1052074 A · Owner: Brown, Michael A. · Inventors: Shade, Steven F.; Brown, Michael A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Slide fastener apparatus including a tape one edge portion of which includes longitudinally spaced apart relatively projected, loop-like segments defining connector means formed to achieve an interdigitating connected relation to similar relatively projected connector means on another tape, characterized by the relatively projected portions of said loop-like segments being fully coated and having projected portions of the loops thereof bridged by resilient compressible material forming a web said web, of said loop-like segments, in the projected portions thereof, being so arranged and formed that on interdigitating of similar connector means the webs thereof will compress and form …
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 April 10, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 10, 1996.
- 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.