Impact enhancing apparatus and method
CA 2510619 C · Owner: Solem, Sigurd · Inventors: Solem, Sigurd; Shears, Carl
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention provides an impact enhancer apparatus comprising a substantially tubular inner member (10) a substantially tubular outer member (12) which is axially movable in relation to the inner member (10) a primary energy storage device (50) adapted to store energy when the inner member (10) is moved in either of first and second axial directions with respect to the outer member (12) and a secondary energy storage device (48) adapted to store energy when the inner member (10) is moved in a first axial direction with respect to the outer member (12). The primary energy storage device (50) can comprise a primary biasing device. The secondary energy storage device can comprise a secondary …
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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 23, 2005 and granted February 5, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 23, 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.