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Underwood Typewriter Co

Underwood

Active Patents

0

Total Holdings

5

Patent Holdings

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Patent No.	Title	Status	Filing Date	Grant Date	Claims	Actions
US1586680A	Typewriting machine	Expired / Lapsed	1923-02-14	1926-06-01	0	Details
US1475715A	Typing-speed recorder	Expired / Lapsed	1921-01-25	1923-11-27	0	Details
US1247151A	Automatic type-writer operator.	Expired / Lapsed	1916-05-24	1917-11-20	0	Details
US1080028A	Type-writing machine.	Expired / Lapsed	1911-08-18	1913-12-02	0	Details
US1063816A	Soldering-clamp.	Expired / Lapsed	1911-01-12	1913-06-03	0	Details