USD300350SExpiredUtility

Expansible sealing plug for pipelines and the like

82
Assignee: CHERNE IND INCPriority: Dec 12, 1985Filed: Dec 12, 1985Granted: Mar 21, 1989
Est. expiryDec 12, 2005(expired)· nominal 20-yr term from priority
Inventors:Allen D. Mathison
82
PatentIndex Score
20
Cited by
14
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for an expansible sealing plug for pipelines and the like, as shown and described.

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