Asphalt resurfacing sprayer
CA 2256294 A1 · Owner: Kaapp, Roger · Inventors: Kaapp, Roger
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An asphalt resurfacing sprayer comprises a storage vessel for retaining asphalt resurfacing fluid, therein, a spray assembly for spraying asphalt with the resurfacing fluid and , a fluid delivery, system coupled to the storage vessel and the spray assembly for supplying the spray assembly, with the resurfacing fluid under pressure. The fluid delivery system consists of a resurfacing, fluid pumping system and a control system coupled to the pumping system for allowing the flow, rate of the resurfacing fluid to be changed on demand. A fine mesh filter having a number of, small apertures, is disposed in between the pumping system and the spray assembly for, pulverizing particulate matter …
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 December 18, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 18, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 18, 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.