Package and method for packaging rolls of web
CA 2132884 C · Owner: Cook, Howard David · Inventors: Myers, Kathleen Louise; Cook, Howard David; Garnsey, Richard Paul
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A package (10) enclosing a stack of rolls (1) includes a carrying means (12), a first tray-like member (40) mounted on the carrying means (12) and a roll support member (14) for receiving and supporting the rolls (1) in a vertical stack. A moisture and light impervious member (16) is wrapped around the vertical stack with the top most roll (3) in the stack at least partially abutting the first closed end of the package (10). Means for opening and closing the first and second closed end portions are provided. In the preferred embodiment, overlapping flap portions (82,84) are formed and then sealed together via tape 30. A second tray-like member (42) is mounted onto the first closed end of …
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 September 21, 1994 and granted June 16, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 21, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 21, 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.