Raised pavement marker
CA 2297017 C · Owner: Giese, Robert D. · Inventors: Held, Jeffrey S.; Giese, Robert D.; Figlewicz, Richard R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A raised pavement marker includes a reflector assembly (28) that is resiliently supported by a membrane (18) that in turn is supported by a frame , (14). The reflector assembly (28) includes a skirt (36) that overlaps the membrane (18), thereby allowing large-area reflectors (32) and low-angle ramp surfaces. A vent is formed between the skirt (36) and the membrane (18) and , this vent is resistant to clogging. Locating elements (60) are placed on the frame of the pavement marker in a recess of a roadway such that all portions , of the frame are positioned below the surface of the roadway. Identations (80) allow the installer to gauge the level of adhesive in the recess.
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 August 4, 1998 and granted September 23, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 4, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 4, 2020.
- 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.