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Expired Canadian patentCanada

Silencing equipment for an air-cooling assembly

CA 2759964 C · Owner: General Electric Company · Inventors: Hamilton, Alan R.; Randolph, Ord Allen; Young, Henry

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

Silencing equipment is provided for an air-cooling assembly in a off-road vehicle having wheels traction motors, a power generating dynamic braking mode resistor grids a resistor grid housing for dissipating the dynamic braking power and a blower. The grid housing includes an air inlet including noise- absorbing material. A conduit with noise-absorbing material is provided for directing cooling air from the inlet through a transition chamber to the blower and the resistor grid in the housing. A removable cover is provided in the conduit for accessing the air blower. The silencing equipment also includes an outlet with plurality of exhaust vanes.

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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 9, 2004 and granted October 9, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 9, 2024.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 9, 2026.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJuly 9, 2004
GrantedOctober 9, 2012
Term endedJuly 9, 2024
Patent numberCA 2759964 C
Classification (IPC)F24F13/24

Timeline

Timeline From CIPO dates

2005200720092011201320152017201920212023Application filedJuly 9, 2004Patent grantedOct 9, 2012Term endedJuly 9, 2024

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.