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Rowland Products Inc

Rowland Pr

Active Patents

0

Total Holdings

4

Patent Holdings

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Patent No.	Title	Status	Filing Date	Grant Date	Claims	Actions
US3549360A	Film for xerographic production of transparencies and proce…	Expired / Lapsed	1966-09-29	1970-12-22	0	Details
US3513060A	Extruded sheet material having differentially colored bands…	Expired / Lapsed	1966-02-25	1970-05-19	0	Details
US3218971A	Printing plate	Expired / Lapsed	1963-02-14	1965-11-23	2	Details
US2985556A	Manufacture of spectacle frames	Expired / Lapsed	1959-03-12	1961-05-23	2	Details