USD317296SExpiredUtility

Switch-over block adapter

45
Individually held — no corporate assignee on recordPriority: Jun 20, 1988Filed: Jun 20, 1988Granted: Jun 4, 1991
Est. expiryJun 20, 2008(expired)· nominal 20-yr term from priority
Inventors:Douglas G. Hard
45
PatentIndex Score
6
Cited by
3
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for a switch-over block adapter, as shown and described.

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