USD344608SExpiredUtility

Heat-recuperating mask

53
Individually held — no corporate assignee on recordPriority: Jun 28, 1991Filed: Jun 28, 1991Granted: Feb 22, 1994
Est. expiryJun 28, 2011(expired)· nominal 20-yr term from priority
Inventors:Alexandr F. GoryachyLjudmila N. RastorguevaVitaly V. GolikovYevgeny S. PetrashkinAlexandr A. SemkovMikhail N. DementievGennady V. Panfilov
53
PatentIndex Score
14
Cited by
7
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for a heat-recuperating mask, as shown and described.

Join the waitlist — get patent alerts

Track USD344608S — get alerts on status changes and closely related new filings.

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