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Dental Perfection Co

Dental Per

Active Patents

0

Total Holdings

5

Patent Holdings

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Patent No.	Title	Status	Filing Date	Grant Date	Claims	Actions
US2678280A	Gel point indicating impression materials	Expired / Lapsed	1952-03-21	1954-05-11	2	Details
US2657971A	Impression material	Expired / Lapsed	1951-12-10	1953-11-03	2	Details
US2631082A	Lead sulfate impression materials	Expired / Lapsed	1952-03-28	1953-03-10	2	Details
US2628153A	Fluoride-containing impression materials	Expired / Lapsed	1952-04-07	1953-02-10	2	Details
US2568752A	Dental impression composition	Expired / Lapsed	1947-07-28	1951-09-25	2	Details