USD331412SExpiredUtility

Air driven diaphragm pump

80
Assignee: WILDEN PUMP & ENGPriority: Nov 13, 1989Filed: Nov 13, 1989Granted: Dec 1, 1992
Est. expiryNov 13, 2009(expired)· nominal 20-yr term from priority
Inventors:Deceased Wilden
80
PatentIndex Score
32
Cited by
7
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for an air driven diaphragm pump, as shown and described.

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