USD320360SExpiredUtility
Spirit level
Individually held — no corporate assignee on recordPriority: May 8, 1989Filed: May 8, 1989Granted: Oct 1, 1991
Est. expiryMay 8, 2009(expired)· nominal 20-yr term from priority
Inventors:Donald F. Kennedy
75
PatentIndex Score
17
Cited by
6
References
1
Claims
Claims
exact text as granted — not AI-modifiedThe ornamental design for a spirit level, as shown.
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