USD421801SExpiredUtility

Carriage for drop-down mask assembly

38
Assignee: 3M INNOVATIVE PROPERTIES COPriority: Oct 3, 1997Filed: Oct 3, 1997Granted: Mar 21, 2000
Est. expiryOct 3, 2017(expired)· nominal 20-yr term from priority
Inventors:Gerald M. BrostromDavid C. Byram
38
PatentIndex Score
3
Cited by
8
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for a carriage for drop-down mask assembly, as shown and described.

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