Removable internal air diffuser
CA 2588242 C · Owner: Crevling, Robert L. Jr. · Inventors: Blackwell, James P. Jr.; Kepner, Matthew S.; Crevling, Robert L. Jr.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Disclosed herein is a vacuum cleaner (10) having a housing (12) defining a blower port (62), an exhaust port (66) and a flow path between the blower , port (62) and the exhaust port (66). The vacuum cleaner (10) also includes a removable cap (64) assembly for the blower port (62) to direct discharge airflow via the flow path to the exhaust port (66). The removable cap assembly (64), in turn, includes a cap head that engages the blower port (62) to close the blower port (62), a cap body coupled to the cap head and inserted in the flow path, the cap body comprising a frame through which the discharge airflow passes, and a sound-influencing material supported by the frame within 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 December 7, 2005 and granted April 29, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 7, 2025.
- 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.