Protective cover system including a corrosion inhibitor
CA 2736671 C · Owner: Creare Inc. · Inventors: Breedlove, Jeffrey J.; Pilvelait, Bruce R.; Elkouh, Nabil A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A protective cover system (100) for inhibiting corrosion of a metallic object. The protective cover system includes a cover (101 200, 600) for defining a microenvironment and a corrosion inhibitor source for releasing one or more corrosion inhibitors into the microenvironment. In one embodiment cover 200 comprises an outer liquid-impermeable layer (204) an inner liquid--permeable layer (202) and a superabsorbent layer (206) located between the outer and inner layers. In another embodiment cover 600 includes a water-vapor-permeable layer (602) and a porous support layer (606) for supporting the water-vapor-permeable layer. In both of these embodiments one or more corrosion inhibitors may be …
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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 June 3, 2003 and granted August 6, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 3, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 3, 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.