Composition for testing periodontal diseases
CA 1332347 C · Owner: Tatano, Toshio · Inventors: Tatano, Toshio; Nakashima, Koichi; Kayahara, Norihiko
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
1-, Abstract, The present invention is directed to a periodontal disease testing composition which diagnoses or prognosticates contraction or progress of the diseases or diagnoses the therapeutic value by promptly determining peptidase-like enzymatic activity in a specimen. The composition is a combination of a compound of the formula 1 or 2 or a mixture thereof, a chromogen and an oxidase: X-T-Pro-Y 1 or X'-Z'-Arg-Y' 2, wherein Pro is a proline residue; Arg is an arginine residue; X and X' are hydrogen or an amino protecting group respectively; Y and Y' are each a residue of a compound which can increase the oxidation reaction rate of a chromogen with an oxidase in the presence of oxygen …
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 October 11, 1994. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 11, 2011.
- 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.