Improvements introduced in sandwich packing
CA 2457010 A1 · Owner: Maia, Evaldo Cesar · Inventors: Maia, Evaldo Cesar
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present patent concerns to packing industry specifically to improvements , related to sandwich packing to reduce the sale costs and to turn more practical and hygienic the consumption of this food having two basic parts: a , superior part (2) and an inferior (3) joined by fittings like male type (4) female (5) in its borders, which are interrupted by a flexible fold (6) in one of its sides, still having, in the inferior part (3) a cut line (7) to allow its division in two parts (3A and 3B) with little effort; said parts when , joined, they form a similar contour of a sandwich with base and superior extremity are straight (8) and outline arched (9) in the level of the fittings.
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 August 26, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 26, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 26, 2024.
- 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.