USD257031SExpiredUtility

Pneumatic tube

48
Assignee: MAYNARD JR CLAUDE EPriority: Aug 29, 1977Filed: Aug 29, 1977Granted: Sep 23, 1980
Est. expiryAug 29, 1997(expired)· nominal 20-yr term from priority
Inventors:Claude E. Maynard, Jr.
48
PatentIndex Score
8
Cited by
2
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for a pneumatic tube, substantially as shown.

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