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National Smelting Co Ltd

National S

Active Patents

0

Total Holdings

4

Patent Holdings

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Patent No.	Title	Status	Filing Date	Grant Date	Claims	Actions
GB656374A	Improvements in the production of aluminium fluoride	Expired / Lapsed	1949-01-10	—	0	Details
CA505199A	Production of aluminium fluoride	Expired / Lapsed	—	1954-08-17	0	Details
US2085697A	Method for treating aluminum and aluminum alloys	Expired / Lapsed	1933-08-05	1937-06-29	0	Details
US1921998A	Method of improving aluminum and alloys thereof	Expired / Lapsed	1930-09-04	1933-08-08	0	Details