Battery pack which can be attached
CA 2203602 C · Owner: Satou, Katsunori · Inventors: Satou, Katsunori; Tsukamura, Naohisa
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The battery pack which can be attached independent of orientation houses rechargeable batteries within its case and has positive and negative (+ -) charge-discharge terminals at one end of the case. The charge-discharge terminals are arranged to connect to electrical apparatus without regard to the orientation of the front or back of the case. The + - charge-discharge terminals are sheet metal bent in flat-sided c-shapes, and comprise a parallel charge-discharge terminal piece which attaches to the case parallel to the case opening plane and a perpendicular charge-discharge terminal piece which attaches to the case perpendicular to the parallel charge-discharge terminal piece. The parallel …
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 April 24, 1997 and granted August 28, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 24, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 24, 2019.
- 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.