Muscle training weight
CA 2330797 A1 · Owner: Bertram, Dave A. · Inventors: Bertram, Dave A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A sports or work muscle weight training device comprised of two depending plates and, fastening means. The training device can be used with any sports or work implement or, worn article that it can be fastened to. Examples include racquets hockey , sticks, lacrosse, sticks, oars paddles, shoes, skates, boots, etc. The two plates frictionally engage an area, of the implement, while suitable means of fasteners (cap screws bolts, cords, or spring, mechanisms for example) hold the two plates together from around the protruding edges, of the two plates. The training device is best made of a metal such as steel lead, copper, zinc, etc, though concrete stone, glass, plastic, enclosed liquids …
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 January 18, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 18, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 18, 2023.
- 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.