You don't need the product names or old records. No fee unless we recover compensation for your family.
Treadway B. Munroe received US Patent No. 1,486,535 on March 11, 1924, filed April 21, 1923.
The patent's description opens (from the scanned text):
This invention relates to heat insulating W- plaster boards especially adapted for holding vof aspha In order that the precise invention may be clearly` understood, it is said: There is at present on the market a'wall covering known .as Celotex, which has a very h1 h heat insulating capacity, and which is ma e from partially cooked thread like bagasse fibers interlaced with each other into a coherent sheet like mass'having great'tensile strength.y Its specific gravity is less than 0.6, and its heat insulating capacity is substantially equal to that ...
- Author
- Treadway B. Munroe
- Published by
- US Patent Office
- Series
- US Patent No. 1,486,535
- Date
- March 11, 1924
- Library no.
- ACL Doc 22669 · asbestosclaims.law/library/22669
- Rights
- US government work, in the public domain.
Read or download
Read online Download the PDF PDF · 5 pages · 506 KB
Where it was listed
- Asbestos, April 1924, in its patents department (the year's issues)
Cite this document
Treadway B. Munroe. “Heat insulating plaster board (US Patent 1,486,535, 1924).” March 11, 1924. US Patent No. 1,486,535. US Patent Office. AsbestosClaims.Law Library, ACL Doc 22669. https://asbestosclaims.law/library/22669.
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.
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.