USD279785SExpiredUtility

Support for a power mask for drilling wells

34
Individually held — no corporate assignee on recordPriority: Dec 22, 1982Filed: Dec 22, 1982Granted: Jul 23, 1985
Est. expiryDec 22, 2002(expired)· nominal 20-yr term from priority
Inventors:Michael Vaughan
34
PatentIndex Score
4
Cited by
5
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for a support for a power mask for drilling wells, substantially as shown and described.

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