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|Assignee=David Kahn Inc
|Assignee=David Kahn Inc
|Country=US
|Country=US
|ApplicationNum=637556
|ApplicationNum=3244
|ApplicationDate=1945-12-28
|ApplicationDate=1948-01-20
|PatentNum=2605745
|PatentNum=2605745
|PatentDate=1950-05-30
|PatentDate=1952-08-05
|PriorityDate=1945-12-28
|PriorityDate=1948-01-20
|Titolo=Fountain pen with protractable and retractable point
|Titolo=Fountain pen
|Marca=Wearever
|Marca=Wearever
|Descrizione=Penna a sfera
|Descrizione=Penna a sfera