USD445105SExpiredUtility

Speech amplifier tube

33
Priority: Feb 29, 2000Filed: Feb 29, 2000Granted: Jul 17, 2001
Est. expiryFeb 29, 2020(expired)· nominal 20-yr term from priority
Inventors:Beth W. Brinson
33
PatentIndex Score
8
Cited by
10
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for a speech amplifier tube, as shown and described.

Join the waitlist — get patent alerts

Track USD445105S — get alerts on status changes and closely related new filings.

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