USD319386SExpiredUtility

Door closer

23
Assignee: RYOBI LTDPriority: Dec 27, 1988Filed: Jun 22, 1989Granted: Aug 27, 1991
Est. expiryDec 27, 2008(expired)· nominal 20-yr term from priority
Inventors:Osamu Shigehiro
23
PatentIndex Score
2
Cited by
5
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for a door closer, as shown.

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