USD250350SExpiredUtility

Portable toilet building

80
Assignee: THETFORD CORPPriority: Sep 19, 1977Filed: Sep 19, 1977Granted: Nov 21, 1978
Est. expirySep 19, 1997(expired)· nominal 20-yr term from priority
Inventors:Frank T. SargentSamuel C. Crosby
80
PatentIndex Score
14
Cited by
3
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for a portable toilet building, as shown.

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