Method for securing a microsieve to a support member and supported microsieve
CA 1292191 C · Owner: Bar Ilan University · Inventors: Gordon, Richard E.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method is provided for securing a metallic microsieve which comprises;, a) inserting a metallic microsieve within the well of a frame-like support member, at least a portion of the upper edge of the well being fabricated from a fusible material and the height of the well wall being greater than the thickness of the microsieve;, b) directing a laser beam against a point on the upper edge of the well to melt fusible material in contact with the laser beam;, c) permitting the laser-molten fusible material to travel down the wall of the well and contact the edge of the microsieve; and, d) permitting the laser-molten fusible material in contact with the edge of the microsieve solidify thereby …
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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 November 19, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 19, 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.
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.