Liquid septic tank treatment composition
CA 2199896 C · Owner: Jiminez, Luis E. · Inventors: Jiminez, Luis E.; Cooney, Edward Matthew Jr.; Smialowicz, Dennis Thomas
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Aqueous septic tank maintenance compositions process for their production, methods for their use as well as methods for the maintenance of sewage systems particularly septic tanks and cesspools are provided. The aqueous septic tank maintenance compositions feature a high proportion of biologically active agents per unit volume or unit weight of the compositions and reduced numbers of stabilizing, compositions generally required to ensure storage and shelf stability of the biologically active agents contained therein. Processes for the production of these aqueous septic tank maintenance compositions, and methods for their use are also disclosed.
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 March 13, 1997 and granted November 29, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 13, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 13, 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.