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WILLIAM P WITHEROW

WILLIAM P

Active Patents

0

Total Holdings

4

Patent Holdings

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Patent No.	Title	Status	Filing Date	Grant Date	Claims	Actions
US2294556A	Floating external wall for buildings	Expired / Lapsed	1941-04-04	1942-09-01	0	Details
US2177525A	Material handling apparatus	Expired / Lapsed	1938-07-20	1939-10-24	0	Details
US2174035A	Sidewalk, floor, or roadway construction	Expired / Lapsed	1936-07-01	1939-09-26	0	Details
US2152190A	Composite block	Expired / Lapsed	1936-05-28	1939-03-28	0	Details