Improved battery system for motive power applications
CA 2285977 C · Owner: Cestone, Christopher R. · Inventors: Cestone, Christopher R.; Vutetakis, David G.; Wilkie, Stanley K.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention relates to a battery cell housing for valve-regulated lead-, acid, batteries. The housing includes a tray base vertical side walls attached to , the base so that the tray base and vertical side walls define a single battery compartment. A top wall is, secured to the side walls and has at least one opening. A compression member is, positioned in the battery compartment beneath the top wall for movement between the, side walls so as to compress a stack of battery cells stacked in a horizontal position in the, battery compartment. At least one internally threaded member is included with the top, wall and is aligned with at least one opening. At least one compression bolt …
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 February 17, 1999 and granted December 2, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 17, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 17, 2021.
- 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.