Documents in our library describe Rk (Istag Ag) as “brake linings and high pressure packings in plates, rings, and form pieces, consisting of asbestos, ligaments, or metal or compounds of these three materials, for sealing of steam, liquid, and gases”.1 They give it as sold from 1944.1
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What each document says
Every statement about Rk (Istag Ag) 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 1944-03”, said by ISTAG AG, as recorded by U.S. Patent and Trademark Office1
- Description: “BRAKE LININGS AND HIGH PRESSURE PACKINGS IN PLATES, RINGS, AND FORM PIECES, CONSISTING OF ASBESTOS, LIGAMENTS, OR METAL OR COMPOUNDS OF THESE THREE MATERIALS, FOR SEALING OF STEAM, LIQUID, AND GASES”, said by ISTAG AG, as recorded by U.S. Patent and Trademark Office1
Kind of product
We list Rk (Istag Ag) with gaskets and packing and brakes and friction materials, from how the documents describe it. Those pages explain how such products exposed workers.
Trades that worked with products like it: Pipefitters and Plumbers, Millwrights, Machinists, and Industrial Mechanics, Auto Mechanics and Brake Workers.
Gaskets and packing by other makers (211)
Sal-mo (Nicolet) · Flexatallic (Flexatalic Gasket Corp.) · Jewett (Johns-Manville) · Spirotallic (Johns-Manville) · Aztec (Asbestos Textile Co.) · Railroad Brake Shoes (Johns-Manville) · Ray-Mold (Raybestos-Manhattan) · Red Mastite (Aberdeen Industries) · Reinz-Repa (Reinz-Dichtungs-Gesellschaft M. B. H.) · Reinz-Super-Spezial (Reinz-Dichtungs-Gesellschaft M. B. H.) · Reinzolit (Reinz-Dichtungs-Gesellschaft M. B. H.) · Ring packing (Garlock) · Robot Packing (Armor Products) · Runwel (Greene Tweed & Co.) · Russo (A. W. Chesterton) · S (Herbert A. Greene) · Sceptre (Beldam Packing & Rubber Company) · Sea Ring Packing (Johns-Manville) · Sea-ro (Chester M. Roe) · Sea-Ro The Universal Packing (Chester M. Roe) · and 191 more: all gaskets and packing
Brakes and friction materials by other makers (76)
Grey-Rock (Raybestos-Manhattan) · Aztec (Asbestos Textile Co.) · Chekko (Cresswell's Asbestos) · Mintex (British Belting & Asbestos) · Ring packing (Garlock) · R/M R-3672-3 (Raybestos-Manhattan) · R/M US 98 (Raybestos-Manhattan) · Railko (Small & Parkes) · Railroad Brake Shoes (Johns-Manville) · Ray-Mold (Raybestos-Manhattan) · Rayman (Raybestos-Manhattan) · Red Demon (Raybestos-Manhattan) · Safetybestos (Bondall) · Servbestos (Thermoid Rubber) · Shallex (James Walker Packing Co.) · Silent Grip (Anchor Packing) · Standco (C. W. Hanslip) · Standco Brake Blocks (Standco Industries) · Starbestos (Knerr & Bortz) · Stella (Charles Laurence Willis) · and 56 more: all brakes and friction materials
References
- USPTO trademark case files (Trademark Full Text XML Data, Annual Applications, 2025 edition) (January 26, 1966). Not yet published in our library.
Cite this page
“Rk (Istag Ag).” AsbestosClaims.Law Library. https://asbestosclaims.law/library/products/istag-ag-rk.
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