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Expired Canadian patentCanada

Percussive tool with flushing head

CA 2509535 C · Owner: Hauptmann, Udo · Inventors: Artmann, Konrad; Goetzfried, Stefan; Hauptmann, Udo

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

A power tool (1) having a striking means (5) by which a percussive tool (2) that can be driven at least partially along an axis (A) struck directly and having a flushing bore (4) extending at least partially longitudinally through a tool shank (3) and having a flushing head (6) having a radially inwardly open transverse bore hole (8) connected in a flow-through fashion with a fluid channel (7). The flushing head (6) has at least one hollow cylindrical sleeve-like guide surface (9) which is fitted for an insertion end (10) of the striking tool (2). The striking means (5) sealed by a seal (11a 11b) is cup-like. The striking means (5) is moveably guided and made fluid tight by the seal (11a …

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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 June 6, 2005 and granted August 21, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 6, 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.
FiledJune 6, 2005
GrantedAugust 21, 2012
Term endedJune 6, 2025
Patent numberCA 2509535 C
Classification (IPC)B25D17/20 +2 more

Timeline

Timeline From CIPO dates

2006200820102012201420162018202020222024Application filedJune 6, 2005Patent grantedAug 21, 2012Term endedJune 6, 2025

Sources & verification

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