USD412454SExpiredUtility

Sight glass for sprinkler system lines

37
Assignee: UNITED BRASS WORKS INCPriority: Apr 16, 1998Filed: Apr 16, 1998Granted: Aug 3, 1999
Est. expiryApr 16, 2018(expired)· nominal 20-yr term from priority
Inventors:Michael A. Berkelhammer
37
PatentIndex Score
6
Cited by
6
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for sight glass for sprinkler system lines, as shown and described.

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