Title
Ang vs. Teodoro
Case
G.R. No. 48226
Decision Date
Dec 14, 1942
Toribio Teodoro, using "Ang Tibay" since 1910, contested Ana L. Ang's 1932 registration for pants/shirts. SC ruled "Ang Tibay" valid, with secondary meaning, causing confusion; Ana L. Ang's use infringed, constituting unfair competition.
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