Treatment method for imparting antimicrobial and hydrophilic properties to aluminum surfaces
CA 1319571 C · Owner: Nihon Parkerizing Co. Ltd. · Inventors: Matsushima, Yasunobu; Hasebe, Akihiko; Okita, Hiroshi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Aluminum and aluminum based alloy surfaces can be made highly hydrophilic and resistant to the growth of odor causing microbes by treatment with a solution combining a waterglass and a borate or boric acid to form a liquid film drying and heating the, liquid film to form an adherent solid film covering this solid, film with a liquid film of a solution of a salt of hydroxide of a multivalent cation such as calcium or magnesium and drying this, second liquid film.
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 June 29, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 29, 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.