Novel dnas and process for producing proteins by using the same
CA 2235148 A1 · Owner: Sankyo Co. Ltd. · Inventors: Yasuda, Hisataka; Nakagawa, Nobuaki; Morinaga, Tomonori
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
DNAs represented by Sequence Listings (1 and 2) and a process for producing proteins which comprises inserting these DNAs into expression vectors to thereby produce proteins having molecular weights of about 60 kD (under reductive conditions) and about 60 kD and about 120 kD (under nonreductive conditions) and being capable of inhibiting the formation of osteoclasts. These proteins are useful in the treatment of osteoporosis and rheumatism.
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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 August 19, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 19, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 19, 2019.
- 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.