Riser pan component for on-site waste systems
CA 2418210 C · Owner: Twm Ip, Llc · Inventors: Meyers, Theodore W.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An integrally formed riser pan member for use as a modular component within an access passageway for an on-site waste disposal system such as a septic tank, to receivably retain a secondary cover member within the riser pan member including a cylindrical body having an upper portion having a vertical wall member adapted to receive another modular passageway component thereon and a lower portion which includes an integral pan portion to seatably receive a secondary cover member. The riser pan member further includes an annular ring between the upper and lower portions. The riser pan member can be employed as a lowermost a highermost, or as an intermediate component in for example, an access …
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 31, 2003 and granted March 22, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 31, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 31, 2025.
- 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.