USD334633SExpiredUtility

Mask

Assignee: HANS RUDOLPH INCPriority: Mar 11, 1991Filed: Mar 11, 1991Granted: Apr 6, 1993

Est. expiryMar 11, 2011(expired)· nominal 20-yr term from priority

PatentIndex Score

213

Cited by

References

Claims

exact text as granted — not AI-modified

The ornamental design for a mask, as shown and described.

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