Refillable polyester bottle and preform for forming same
CA 1308370 C · Owner: Collette, Wayne N. · Inventors: Collette, Wayne N.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
PREFORM FOR BLOW MOULDING REFILLABLE POLYESTER BEVERAGE BOTTLE", A preform (10) for use in blow molding a returnable transparent refillable container, said preform being an injection molded member formed of a polyester said preform, having an elongated body (16) for forming a container body and being closed at one end and open at the opposite end said, preform open end having a neck finish (12) and said elongated body having a portion (14) adjacent said neck finish (12) tapering in wall thickness for forming a container shoulder portion, said closed one end (20) being defined by a bottom having a generally hemispherical outer surface characterised, in that said closed one end (20) of said …
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 6, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 6, 2009.
- 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.