Bound materials core measuring device
CA 2544228 C · Owner: Murtagh, Brian James · Inventors: Murtagh, Brian James
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A bound materials core measuring device comprises a tubular body (1)which is adapted to accommodate a core sample of road or pathway surfacing bound material. The body has a plurality of graduated scale (7) extending therealong at spaced intervals thereround so as to enable the sample to be viewed through the body and the depth of the relevant one or more layers of core sample to be measured from a plurality of angles by reading from each of the plurality of graduated scales. The tubular body has located therewithin, means (9) for , supporting the core sample said means being mounted for longitudinal movement relative to the tubular body. The tubular body also has means (25) located …
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 October 28, 2004 and granted November 20, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 28, 2024.
- 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.