Control rod
CA 2376602 C · Owner: Mastrangelo, Vincent · Inventors: Sholeen, Thomas; Dankow, Mark W.; Mastrangelo, Vincent
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A fabricated control rod is disclosed. The control rod includes a spacer having a C or U-shaped channel cross--section. It also includes a bushing tube welded to each end of the spacer. Each end of the spacer rod is shaped to have a substantially continuous mating engagement with the exterior side surface of the adjacent bushing tube. At least a substantially complete perimeter weld joins both the interior and exterior of each shaped end to the bushing tube.
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 September 1, 2000 and granted January 15, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 1, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 1, 2022.
- 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.