USD346665SExpiredUtility

Glass block

36
Assignee: PITTSBURGH CORNING CORPPriority: Jun 25, 1992Filed: Jun 25, 1992Granted: May 3, 1994
Est. expiryJun 25, 2012(expired)· nominal 20-yr term from priority
Inventors:Peter S. Aldridge
36
PatentIndex Score
6
Cited by
3
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for the glass block, as shown.

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