Cleaning formulation and method that alleviates current problems
CA 2114540 A1 · Owner: Lockheed Martin Corporation · Inventors: Phillips, Tony L.; Weltman, Henry J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Disclosed are formulations for producing chemical solvent admixtures that can be employed to clean a surface for further work or can be applied to cloths for the cleaning operation. The disclosed formulations and methods of disposing the formulations alleviate problems due to solvent evaporation into the atmosphere which cause many legal and environmental problems. The figure exemplifies a preferred method of disposing of cloths which have been contacted with the disclosed formulations and applied to a surface in a cleaning operation.
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 July 30, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 30, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 30, 2014.
- 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.