USD548510SExpiredUtility

Vacuum flask

58
Assignee: PHOENIX VACUUM FLASK COMPANY LPriority: May 31, 2005Filed: May 31, 2005Granted: Aug 14, 2007
Est. expiryMay 31, 2025(expired)· nominal 20-yr term from priority
Inventors:Teh-Hslung Frank Huang
58
PatentIndex Score
18
Cited by
12
References
1
Claims

Claims

exact text as granted — not AI-modified
CLAIM 
     
       The ornamental design for a vacuum flask, as shown and described.

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