Portable blower
CA 1309214 C · Owner: Lacher, Vernon Robert · Inventors: Hahn, David Alfred; Gierke, Martin Paul; Lacher, Vernon Robert
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A portable, rechargeable battery-operated, slender, tubular, blower (100) for removing relatively light debris (202) from hard surfaces such as sidewalks driveways, decks or workbench surfaces uses an axial flow blower fan (307) arranged for noise minimization and energy efficient operation. Blower tube inlet and outlet portions (106, 104) are arranged for debris removal effectiveness by optimizing airflow volume and velocity parameters.
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
- Granted October 27, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 27, 2009.
- 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.