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United States Envelope Co

United Sta
Active Patents
0
Total Holdings
3

Patent Holdings

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Patent No. Title Status Filing Date Grant Date Claims Actions
US2399000A Envelope Expired / Lapsed 1943-09-04 1946-04-23 0 Details
US2332637A Continuous envelope Expired / Lapsed 1941-02-05 1943-10-26 0 Details
US1144506A Envelop-making machine. Expired / Lapsed 1908-07-24 1915-06-29 0 Details