Method and apparatus for dispensing and retrieving highway warning markers
CA 2074636 A1 · Owner: Nicholson, John P. · Inventors: Luoma, Eugene H.; Nicholson, Timothy J.; Nicholson, John P.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A highway marker manipulating apparatus comprising a pair of gripper wheels spaced apart to engage and apply pressure onto the side edges of the base flange of a highway marker. The wheels are spaced apart by a loading magazine between the wheels and directing the marker flanges into gripped engagement with the gripping faces of the opposing wheels; and a guide panel between the outer portions of the wheels to guide the flanges of the markers being retrieved off the pavement. A stripper guide is provided between the wheels for urging the flanges of the markers toward the outer periphery of the wheels as the flanges are also engaging the peripherally extending guide panels as to turn the …
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 24, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 24, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 24, 2014.
- 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.