USD308984SExpiredUtility

Calculator

Assignee: CHU WILLIAM H KPriority: Nov 6, 1986Filed: Nov 6, 1986Granted: Jul 3, 1990

Est. expiryNov 6, 2006(expired)· nominal 20-yr term from priority

PatentIndex Score

Cited by

References

Claims

exact text as granted — not AI-modified

The ornamental design for a calculator, as shown and described.

Join the waitlist — get patent alerts

Track USD308984S — get alerts on status changes and closely related new filings.

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