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Expired Canadian patentCanada

Vector with multiple promoters

CA 1289901 C · Owner: Nakagawa, Yukimitsu · Inventors: Nagai, Masanori; Arimura, Hirofumi; Uno, Shusei

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Abstract From the Canadian patent

A novel vector wherein at least one promoter region is present between two different restriction enzyme cleavage sites capable of giving, upon cleavage, the same cohesive end. The vector can serve as a basic form of multiple promoters. By constructing multiple promoters using this vector, more efficient protein synthesis by genetic engineering becomes possible. 2434

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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

  • Granted October 1, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 1, 2008.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJanuary 30, 1985
GrantedOctober 1, 1991
Term endedOctober 1, 2008
Patent numberCA 1289901 C
Classification (IPC)C12N15/11 +1 more

Timeline

Timeline From CIPO dates

19861989199219951998200120042007Application filedJan 30, 1985Patent grantedOct 1, 1991Term endedOct 1, 2008

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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.