USD315829SExpiredUtility
Water purifying canteen
Individually held — no corporate assignee on recordPriority: Mar 12, 1987Filed: Mar 12, 1987Granted: Apr 2, 1991
Est. expiryMar 12, 2007(expired)· nominal 20-yr term from priority
Inventors:Melvin R. Covington
67
PatentIndex Score
21
Cited by
11
References
1
Claims
Claims
exact text as granted — not AI-modifiedThe ornamental design for a water purifying canteen, as shown and described.
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