Electroforming emp shielding elements
CA 1331575 C · Owner: Pressau, Jean Pierre · Inventors: Postupack, Dennis Sylvester; Graham, Charles Richard; Pressau, Jean Pierre
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method for electroforming a metal grid preferably of nickel or copper capable of attenuating electromagnetic pulse effects is disclosed, as well as in an aircraft transparency containing such a grid. Nonlinear and nonorthogonal grid patterns are also disclosed as, well as the electroplating, preferably with tin and lead of grids of, any configuration to give them a non-glare coating. The transparency can be glass or a rigid plastic such as polycarbonate or an acrylic. It may be a laminate which includes a layer of polyvinyl butyral or a polyurethane.
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 August 23, 1994. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 23, 2011.
- 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.