Last Updated: Aug 08, 2018     Views: 69

I've looked into your question about patent 2204158, but have not been able to find any information on the specific type of metal used to make the filter. You might want to try contacting Corning Inc. (in particular, their archives department), to see if they have any further information.

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Alert: Museum Closed to Public. May Cause Delays.The Corning Museum of Glass is currently closed to the public effective March 16 through April 22, 2020, as a precautionary measure for public health and safety. As a result, resources available to answer your questions are extremely limited. During this closure, you may be interested in searching our Ask a Glass Question FAQs or reviewing our Research Guides on various topics. We also highly recommend checking out The Corning Museum of Glass on YouTube for hours of artist demonstrations, lectures, and special events. Thank you for your patience.

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