Package of specialty roofing materials, insert therefore and method of packaging
CA 2551765 C · Owner: Amatruda, Anna · Inventors: Amatruda, Anna; Jenkins, Robert L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A package is provided, of specialty roofing materials including a plurality of stacked shingles in the package in nested relation, with the shingles being of variable thickness from one end to the other in one or more stacks as packaged, to be of "V" configuration and of various selected orientations, and forming a substantially hollow zone with at least one insert structure to fill the hollow zone and provide support for the end shingle in the stack. The inserts may be constructed of various materials such as folded cardboard, cellular foam or the like. Filler material may be provided in the package for any voids between the stack of shingles and the upper end of the package.
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 July 10, 2006 and granted March 18, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 10, 2026.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
- 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.