USD273799SExpiredUtility

In-out symbol for automatic opening hinged glass doors

Assignee: DARRELL JACKPriority: Mar 1, 1982Filed: Mar 1, 1982Granted: May 8, 1984
Est. expiryMar 1, 2002(expired)· nominal 20-yr term from priority
Inventors:Jack Darrell
96
PatentIndex Score
70
Cited by
6
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for an in-out symbol for automatic opening hinged glass doors, substantially as shown and described.

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