Method and apparatus for the thermoforming and stacking of hollow objects incorporating a base formed from thermoplastics sheet material
CA 2087512 C · Owner: Padovani, Pietro · Inventors: Padovani, Pietro
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Method for the thermoforming of hollow objects having a base, which comprises thermoforming the objects from a sheet of thermoplastics material in a half of a double female mould that can be moved between a moulding area against a male die and a discharge area alternately to one side or the other of the forming area transferring, the objects from the discharge area into a plurality of receiving formers moving sequentially stepwise along a track, performing one or more processing or handling operations while the formers are stationary and sequential movement of the formers to a stacking station.
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 18, 1993 and granted March 27, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 18, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 18, 2015.
- 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.