USD392674SExpiredUtility

Arithmetic instructional apparatus

27
Assignee: PEREZ IRMA MARITZAPriority: Apr 21, 1997Filed: Apr 21, 1997Granted: Mar 24, 1998
Est. expiryApr 21, 2017(expired)· nominal 20-yr term from priority
Inventors:Irma Maritza Perez
27
PatentIndex Score
1
Cited by
16
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for an arithmetic instructional apparatus, as shown and described.

Join the waitlist — get patent alerts

Track USD392674S — get alerts on status changes and closely related new filings.

We store only your email — no account needed. See our privacy policy.