Non-replaceable snap on cap for school milk bottles
CA 2113215 A1 · Owner: Crisci, Harry E. · Inventors: Crisci, Harry E.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A snap on non-replaceable cap for a plastic school milk bottle neck finish with an external annular rib has a top with an inwardly spaced sealing flange depending therefrom the outer surface of the sealing flange is shaped downwardly and inwardly. A tear skirt having an inturned annular flange forming the peripheral edge of the top is joined to the top by a thin semi-annular tear line. An inturned rib is formed on the inner surface of the tear skirt which locks under the external rib on the neck finish. The tear skirt including the inturned, annular flange may be completely or partially torn away from the top to permit the top to be removed. To facilitate removal the, tear skirt is formed …
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 11, 1994. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 11, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 11, 2016.
- 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.