USD255596SExpiredUtility

Vacuum breaking tee

79
Assignee: JOHNSON ROBERT LPriority: Apr 16, 1979Filed: Apr 16, 1979Granted: Jun 24, 1980
Est. expiryApr 16, 1999(expired)· nominal 20-yr term from priority
Inventors:Robert L. Johnson
79
PatentIndex Score
13
Cited by
8
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for a vacuum breaking tee, as shown.

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