USD309173SExpiredUtility

Vacuum breaker

45
Assignee: MASCO CORPPriority: Dec 29, 1986Filed: Dec 29, 1986Granted: Jul 10, 1990
Est. expiryDec 29, 2006(expired)· nominal 20-yr term from priority
Inventors:Roger E. Stipe
45
PatentIndex Score
8
Cited by
13
References
1
Claims

Claims

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

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