USD313011SExpiredUtility

Data cartridge backup unit

70
Assignee: ADVANCED DIGITAL INFORMATION CORPPriority: Apr 13, 1989Filed: Apr 13, 1989Granted: Dec 18, 1990
Est. expiryApr 13, 2009(expired)· nominal 20-yr term from priority
70
PatentIndex Score
13
Cited by
9
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for a data cartridge backup unit, as shown and described.

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