Stacking clamp
CA 2299702 C · Owner: Redman, Paul W. · Inventors: Redman, Paul W.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Apparatus for stacking selected layers of products on a pallet comprises an upstanding frame having two side walls a back wall forming a close with the side walls an open, entry side and an open uppermost end defined by peripheral frame members. Clamp means circumscribe the uppermost end in unobstructive overhead relation within the close and surrounding frame members to provide an inwardly directed clamping pressure between the side walls and between the back wall and frame members positioned. above the entry side. Clamping pressure is generated by inflatable air bags positioned between the peripheral frame members and pressure plates facing inwardly of the close. Layers of products from …
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 12, 1999 and granted December 12, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 12, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 12, 2021.
- 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.