No fee unless we recover compensation for your family Text size 833-4-ASBESTOS (833-427-2378) Free Case Review

Monobestos (Keasbey & Mattison)

Monobestos was a trade mark of Keasbey & Mattison Co., of Ambler, Pennsylvania, filed on November 20, 1936, "for asbestos boards, sheets, lumber and building materials in flat and sheet form," as reported in the trade-marks column of Asbestos, the industry's trade journal, in April 1937.1 In 1939 the magazine reported that Keasbey & Mattison supplied Monobestos as linings for transformer rooms at the New York World's Fair.2

Later years: Monobestos under Nicolet.

You don't need the product names or old records. No fee unless we recover compensation for your family.

Call 833-4-ASBESTOS Request a review

Pictures

How Monobestos (Keasbey & Mattison) looked: a label, photograph or catalog page from our library. Each picture has its own page and library number, so it can be cited on its own.

What each document says

Every statement about Monobestos (Keasbey & Mattison) in the documents, in each document's own words.

Asbestos Magazine, 1937, April 1937

  • Description: “Monobestos trade mark, Keasbey & Mattison Co., Ambler, Pa.: for asbestos boards, sheets, lumber and building materials in flat and sheet form”, said by Keasbey & Mattison, as recorded by Asbestos (magazine), Trade Marks column supplied by National Trade Mark Co., p. 311

Asbestos Magazine, 1939, May 1939

  • Use: “linings for transformer rooms at the New York World's Fair” (sales to New York World's Fair 1939), p. 62

USPTO trademark case files (Trademark Full Text XML Data, Annual Applications, 2025 edition)

  • Sold from: “first used in commerce 1936-10-31”, said by KEASBEY & MATTISON COMPANY, as recorded by U.S. Patent and Trademark Office3
  • Description: “ASBESTOS BOARDS, ASBESTOS SHEETS, ASBESTOS LUMBER, AND ASBESTOS BUILDING MATERIALS IN FLAT AND SHEET FORM”, said by KEASBEY & MATTISON COMPANY, as recorded by U.S. Patent and Trademark Office3

Label: Monobestos asbestos lumber (Keasbey & Mattison Company), Image

  • Sold from: “Date of First Use in Commerce: October 31, 1936”, said by Keasbey & Mattison Company, as recorded by U.S. Patent Office trademark file4
  • Asbestos content: “best in asbestos; MONOBESTOS (ASBESTOS LUMBER)”, p. 14
  • Description: “asbestos-cement structural sheet” (as of 1953), p. 945

Kind of product

We list Monobestos (Keasbey & Mattison) with asbestos-cement pipe, board and sheet, from how the documents describe it. That page explains how such products exposed workers.

Trades that worked with products like it: Carpenters and Construction Workers.

Other asbestos-cement pipe, board and sheet by Keasbey & Mattison (33)

Century · 'Century' Apac · Ebonized Asbestos · Fluid-Tite · Apac · K & M Aircell · K&M Best in Asbestos · K&M Trafford Tile Asbestos Cement · Kamflex · KolorMate · Linabestos · Linalbestos · No. 701 · Nu-Grain · Promenade Tile · Resistal · Sheetflextos · Strytex · T-deck · Trafford Tile · and 13 more on the company's page

Asbestos-cement pipe, board and sheet by other makers (350)

Flexboard (Johns-Manville) · Thermobestos · Careytemp (Philip Carey) · Min-k (Johns-Manville) · Unibestos (Union Asbestos & Rubber Co.) · Metal-on (Johns-Manville) · Micro-Flexboard (J/Hns-Manville) · Mill Board (Ruberoid) · Min-k 1301 (Johns-Manville) · Min-k 500 (Johns-Manville) · Miraweld (Kaiser Refractories) · Molten Metal Marinite (Johns-Manville) · Monobestos (Nicolet) · Mule-Hide (Lehon) · Narro-Side (Supradur) · No. 1 Hard (Philip Carey) · No. 100 Kearsarge Sheet (Johns-Manville) · No. 60 Service Sheet (Johns-Manville) · Norbestos (Nicolet) · Nordeskafilt (Nordesk A Moskinfilt Aktiebologet) · and 330 more: all asbestos-cement pipe, board and sheet

See also

References

  1. Asbestos Magazine, 1937, April 1937 (April 1, 1937), p. 31.
  2. Asbestos Magazine, 1939, May 1939 (May 1, 1939), p. 6.
  3. USPTO trademark case files (Trademark Full Text XML Data, Annual Applications, 2025 edition) (November 20, 1936). Not yet published in our library.
  4. Label: Monobestos asbestos lumber (Keasbey & Mattison Company), Image.
  5. Sourcebook on Asbestos Diseases: Medical, Legal, and Engineering Aspects, Volume Two (1986), p. 94. Not yet published in our library.

Mentioned on this site

Cite this page

“Monobestos (Keasbey & Mattison).” AsbestosClaims.Law Library. https://asbestosclaims.law/library/products/keasbey-and-mattison-monobestos.

ACL Doc numbers and their short links never change. See how to cite the Library.

Talk with an asbestos lawyer

Start with what you remember, and we'll take it from there.

Call 833-4-ASBESTOS Request a free case review

This page is provided for general informational purposes and does not constitute legal advice. Every asbestos case turns on its own facts, exposure history, diagnosis, deadlines, available evidence, and applicable law. Reviewing this page does not create an attorney-client relationship. For advice about your specific situation, call 833-4-ASBESTOS for a free case review.