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Joseph W. Donegan received US Patent No. 2,782,129 on February 19, 1957, filed December 20, 1955. It was assigned to Allied Chemical and Dye Corp.
The patent's description opens (from the scanned text):
This invention relates to fire retardant surfacing materials, and more especially to fire retardant asphalt roofing and shingle compositions and to a method for preparing them.
- Author
- Joseph W. Donegan
- Published by
- US Patent Office
- Series
- US Patent No. 2,782,129
- Date
- February 19, 1957
- Library no.
- ACL Doc 22312 · asbestosclaims.law/library/22312
- Rights
- US government work, in the public domain.
Read or download
Read online Download the PDF PDF · 4 pages · 492 KB
Where it was listed
- Asbestos, March 1957, in its patents department (the year's issues)
Cite this document
Joseph W. Donegan. “Fire retardant coated roofing sheet and process for preparing (US Patent 2,782,129, 1957).” February 19, 1957. US Patent No. 2,782,129. US Patent Office. AsbestosClaims.Law Library, ACL Doc 22312. https://asbestosclaims.law/library/22312.
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