USD322797SExpiredUtility

3-D glasses

50
Assignee: IMAX SYSTEMS CORPPriority: Jun 22, 1989Filed: Jun 22, 1989Granted: Dec 31, 1991
Est. expiryJun 22, 2009(expired)· nominal 20-yr term from priority
Inventors:Jan KuypersKarim RashidIan F. Norton
50
PatentIndex Score
5
Cited by
7
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for 3-D glasses, as shown.

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