Apparatus and method for forming an adhesively bonded seam between resiliently compressible fabric sheets
CA 2087834 C · Owner: Tompkins, Tommas J. · Inventors: Meltzer, Mark J.; Tompkins, Tommas J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An apparatus (21) for forming a butt seam between opposed edges of resiliently compressible fabric sheets (28, 29), such as foamed neoprene for wet suits and dry suits. The apparatus (21) includes fabric manipulating assembly (23) which continuously compresses the sheets proximate and inwardly of the edges (32 33), preferably , by a roller assembly (26 27), to form opposed, shoulders or areas (43 44) that will permit the application of a lateral force to firmly press the opposed edges (32 33) of the flexi-, ble and compressible sheets (28 29) tightly together during movement and bonding along the seam. The apparatus (21) preferably includes adhesive activation means (24) in the form of …
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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 July 22, 1991 and granted January 28, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 22, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 22, 2013.
- 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.