Heating pad
CA 1332733 C · Owner: Kleinsasser, Jonathan · Inventors: Kleinsasser, Jonathan
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A heating pad for example for animals particularly piglets in a farrowing crate comprises two vacuum formed sheets which lie parallel one on top of the other with a shallow compartment therebetween. A pipe where heating fluid passes into the compartment through the lower sheet and wraps around a number of projections in the lower sheet which extend from the lower sheet up to the under surface of the upper sheet. The pipe is of a flexible elastomeric type resistant to corrosion so that the pad is thus heated by a warm liquid such as water which provides a very simple economic device resistant to damage.
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 October 25, 1994. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 25, 2011.
- 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.