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Expired Canadian patentCanada

Very large scale immobilized polymer synthesis

CA 2054706 C · Owner: Affymax Technologies N.V. · Inventors: Read, J. Leighton; Fodor, Stephen P. A.; Stryer, Lubert

CIPO record

Overview

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

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Abstract From the Canadian patent

A method and device for preparing desired sequences on a substrate at known locations. Known locations (10) of a substrate (2) are irradiated by way of a, mask (8) so as to activate a material (4) for binding. The substrate is then exposed to, a first material (12) for binding thereto. Second locations (14) are then irradiated, through a mask and exposed to a second material (16). A variety of sequences may, be formed through selective irradiation of the substrate followed by application of, selected materials. A reactor system and fluorescence detection system are also dis-, closed.

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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 June 7, 1990 and granted August 28, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 7, 2010.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 7, 2012.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJune 7, 1990
GrantedAugust 28, 2001
Term endedJune 7, 2010
Patent numberCA 2054706 C
Classification (IPC)C07K1/04 +2 more

Timeline

Timeline From CIPO dates

1991199319951997199920012003200520072009Application filedJune 7, 1990Patent grantedAug 28, 2001Term endedJune 7, 2010

Sources & verification

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