Improved drain board for gutter
CA 2212788 C · Owner: Tu, Yu-Pin · Inventors: Tu, Yu-Pin
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An improved drain board for use on a gutter particularly has a cover board pivotally secured to a mounting bracket. The cover board has an outwardly extended pivot pole at one corner thereof and an inwardly extended receiving tube at the opposite corner for accommodation of a bias spring and a movable pivot rod. At the corresponding corners of the mounting bracket is disposed an outwardly extended engaging tube respectively so as to permit the fixed pivot pole and the movable pivot rod of the cover board to be pivotally mounted onto the mounting bracket and the cover board is well protected from being stolen with ease by burglars.
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 August 12, 1997 and granted January 29, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 12, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 12, 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.