USD278883SExpiredUtility

Reversible friction-ring washer

78
Individually held — no corporate assignee on recordPriority: Dec 30, 1982Filed: Dec 30, 1982Granted: May 21, 1985
Est. expiryDec 30, 2002(expired)· nominal 20-yr term from priority
Inventors:Bengt O. Frieberg
78
PatentIndex Score
15
Cited by
4
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for a reversible friction-ring washer, as shown and described.

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