USD254100SExpiredUtility

Protective helmet with ear muffs and face protection

Assignee: SANDVIK ABPriority: Mar 1, 1977Filed: Aug 23, 1977Granted: Feb 5, 1980

Est. expiryMar 1, 1997(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 protective helmet with ear muffs and face protection, as shown and described.

Join the waitlist — get patent alerts

Track USD254100S — get alerts on status changes and closely related new filings.

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