USD473255SExpiredUtility

Inverted projection head for an overhead projector

31
Assignee: 3M INNOVATIVE PROPERTIES COPriority: Mar 19, 2001Filed: Mar 19, 2001Granted: Apr 15, 2003
Est. expiryMar 19, 2021(expired)· nominal 20-yr term from priority
Inventors:Steve CozzolinoBradford C. ZuegeMichael S. JossMark Tyler Nelson
31
PatentIndex Score
1
Cited by
3
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for an inverted projection head for an overhead projector, as shown and described.

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