USD281713SExpiredUtility

Flapper flush valve for toilet tanks

Assignee: BEATRICE CO INCPriority: Feb 7, 1983Filed: Feb 7, 1983Granted: Dec 10, 1985
Est. expiryFeb 7, 2003(expired)· nominal 20-yr term from priority
Inventors:Erwin F. Mikol
56
PatentIndex Score
6
Cited by
7
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for flapper flush valve for toilet tanks, substantially as shown and described.

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