USD306901SExpiredUtility

Air sampling filter cassette

6
Individually held — no corporate assignee on recordPriority: Jan 29, 1988Filed: Jan 29, 1988Granted: Mar 27, 1990
Est. expiryJan 29, 2008(expired)· nominal 20-yr term from priority
Inventors:Leonard I. Popick
6
PatentIndex Score
0
Cited by
5
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for an air sampling filter cassette, as shown.

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