USD328855SExpiredUtility

Portion of a key blade blank

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Assignee: BEST LOCK CORPPriority: Mar 29, 1991Filed: Mar 29, 1991Granted: Aug 25, 1992
Est. expiryMar 29, 2011(expired)· nominal 20-yr term from priority
Inventors:Walter E. BestTimothy R. BjornsonJames W. BorgmannGary R. Jacobs
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PatentIndex Score
1
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17
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for a portion of a key blade blank, as shown and described.

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