USD307593SExpiredUtility

Vacuum chuck for a lathe for making optically-smooth surfaces

Individually held — no corporate assignee on recordPriority: Feb 26, 1987Filed: Feb 26, 1987Granted: May 1, 1990

Est. expiryFeb 26, 2007(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 vacuum chuck for a lathe for making optically-smooth surfaces, as shown and described.

Join the waitlist — get patent alerts

Track USD307593S — get alerts on status changes and closely related new filings.

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