USD418234SExpiredUtility
Intumescent seal
Est. expirySep 9, 2018(expired)· nominal 20-yr term from priority
Inventors:Charles F. Smith
58
PatentIndex Score
10
Cited by
8
References
1
Claims
Claims
exact text as granted — not AI-modifiedThe ornamental design of an intumescent seal, as shown and described.
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