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Certainteed LLC

Certaintee
Active Patents
0
Total Holdings
3

Patent Holdings

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Patent No. Title Status Filing Date Grant Date Claims Actions
US3899561A Method of making plastic siding Expired / Lapsed 1973-07-17 1975-08-12 2 Details
US2385916A Apparatus for impregnating webs Expired / Lapsed 1940-07-12 1945-10-02 0 Details
US1798609A Plaster-board manufacture Expired / Lapsed 1927-04-05 1931-03-31 0 Details