Patent Yard Sign in
Expired Canadian patentCanada

Rapid propagation of sv3t3 cells for production of mif and taf

CA 1093995 A · Owner: Monsanto Company · Inventors: Tolbert, William R.

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

Open the CIPO record

Abstract From the Canadian patent

SV3T3 cells are rapidly propagated in vitro to elaborate MIF and TAF by first growing on a surface and thereafter transferring an incolum of the growing cells into an agitated liquid suspension of nutrient culture medium, incubating at 30°-38°C while continuing the agitation of the medium, periodically transferring the growing cells into fresh medium and continuing the incubation with agitation of the medium,whereby said cells are proliferated in aggregated and elaborate HIF and TAF in significantly detectable amounts.

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 January 20, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 20, 1998.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledNovember 2, 1977
GrantedJanuary 20, 1981
Term endedJanuary 20, 1998
Patent numberCA 1093995 A
Classification (IPC)C12N5/00 +2 more

Timeline

Timeline From CIPO dates

1978198119841987199019931996Application filedNov 2, 1977Patent grantedJan 20, 1981Term endedJan 20, 1998

Sources & verification

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