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Athletic shoe
US 2,506,559 A
Filed
: 08/21/1948
Issued
: 05/02/1950
Est. Priority Date
: 08/21/1948
Status: Expired due to Term
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Petitions
6
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6 Citations
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Current Assignee
George L. Pierce
,
Nils H. Thorkelson
Original Assignee
George L. Pierce
,
Nils H. Thorkelson
Inventors
Pierce, George L.
,
Thorkelson, Nils H.
Application Number
US03/045,506
Time in Patent Office
619 Days
Field of Search
US Class Current
36/105
CPC Class Codes
A43B 5/06
Running shoes; Track shoes
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