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Expired Canadian patentCanada

Cover for egg tray to be shrink wrapped

CA 1237700 A · Owner: Industrie Specializzate Articoli Plastici S.P.A. · Inventors: Padovani, Pietro

CIPO record

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

The object of this invention is a lid of truncated pyramidal shape made of thin transparent synthetic material to be used a-top a tray containing eggs the object of, this lid it to facilitate film wrapping of tray. Said lid is equipped with features to ease its placement on to the tray, provides for the avoidance of displacement and arching of its lateral walls during film wrapping; with features which would insure a stable and protected position of the eggs via small anti-shock air pockets; with features which would prevent the impaction of empty lids one to the other when stacked.

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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 June 7, 1988. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 7, 2005.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJuly 10, 1984
GrantedJune 7, 1988
Term endedJune 7, 2005
Patent numberCA 1237700 A
Classification (IPC)B65D1/00 +1 more

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.