USD345093SExpiredUtility
Electromagnetic door lock
Individually held — no corporate assignee on recordPriority: Jun 19, 1992Filed: Jun 19, 1992Granted: Mar 15, 1994
Est. expiryJun 19, 2012(expired)· nominal 20-yr term from priority
Inventors:Frederick F. Fischbach
22
PatentIndex Score
1
Cited by
5
References
1
Claims
Claims
exact text as granted — not AI-modifiedThe ornamental design for an electromagnetic door lock, as shown and described.
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