Documents in our library describe Sound Barriers (Birma Products) as “acoustical products-namely, for sound absorptive materials made of combinations of asbestos, aluminum and fiberglass and employed in building duct work and the like for thermal, acoustical and vibration attenuation”.1 They give it as sold from 1961.1
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What each document says
Every statement about Sound Barriers (Birma Products) in the documents, in each document's own words.
USPTO trademark case files (Trademark Full Text XML Data, Annual Applications, 2025 edition)
- Sold from: “first used in commerce 1961-04”, said by BIRMA PRODUCTS CORPORATION, as recorded by U.S. Patent and Trademark Office1
- Description: “ACOUSTICAL PRODUCTS-NAMELY, FOR SOUND ABSORPTIVE MATERIALS MADE OF COMBINATIONS OF ASBESTOS, ALUMINUM AND FIBERGLASS AND EMPLOYED IN BUILDING DUCT WORK AND THE LIKE FOR THERMAL, ACOUSTICAL AND VIBRATION ATTENUATION”, said by BIRMA PRODUCTS CORPORATION, as recorded by U.S. Patent and Trademark Office1
References
- USPTO trademark case files (Trademark Full Text XML Data, Annual Applications, 2025 edition) (November 17, 1966). Not yet published in our library.
Cite this page
“Sound Barriers (Birma Products).” AsbestosClaims.Law Library. https://asbestosclaims.law/library/products/birma-products-sound-barriers.
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