Pin block for carpet gripping devices
CA 2454930 C · Owner: Beno J. Gundlach Company · Inventors: Despins, Maurice
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention is concerned with a pin block for use with carpet gripping tools that comprise a plurality of downward extending pins that are canted towards the front of the pin block. Each pin is centered and supported in a pin support that forms an end surface thereby allowing only a pin tip to be exposed. Extending between each pair of pin supports is a fin that has a downward edge which is flush with the end surfaces of the pin supports to form a continuous contact surface that prevents the pin tips from penetrating through the carpet backing. Each pin block is adapted to stack together with other pin blocks to form ganged pin blocks to increase the gripping power of a carpet …
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 January 6, 2004 and granted May 1, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 6, 2024.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 6, 2026.
- 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.