Liquid cleaners
CA 1321334 C · Owner: Hastedt, Charlene Marie · Inventors: Otten, Geneva Gail; Medcalf, Ralph Ferdinand Jr.; Hastedt, Charlene Marie
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Aqueous detergent compositions containing butoxy-propanol with a low level of the "secondary" isomer have improved odor characteristics with a variety of perfume compositions even when the compositions contain other typical cosolvents. Preferred compositions include hard surface cleaners having good filming and streaking properties. The compositions contain a detergent surfactant and, desirably, a detergent builder.
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
- Granted August 17, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 17, 2010.
- 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.