USD271416SExpiredUtility

Filter cartridge frame

60
Individually held — no corporate assignee on recordPriority: Mar 16, 1981Filed: Mar 16, 1981Granted: Nov 15, 1983
Est. expiryMar 16, 2001(expired)· nominal 20-yr term from priority
Inventors:Gerald J. Mayer
60
PatentIndex Score
9
Cited by
7
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for a filter cartridge frame, as shown.

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