Is this a real patent?

Yes — the original drawing as filed at the U.S. Patent Office, cleaned and printed. Public domain by law.

Printed in Europe on 200 g/m² matte paper. Small sizes ship flat, 50 × 70 ships rolled in a tube. Tracking by email.

What if it arrives damaged?

Send a photo within 7 days and we reprint and reship it free.

US 2,929,922Masers and maser communications system1960

PD-76 · US 2,929,922

Name: Masers and maser communications system Patent Print (1960)
Brand: PATENT DEPT.
SKU: PD-76
Availability: InStock

Schawlow and Townes' optical maser, 1960 — the patent that put the laser on paper before anyone had built one.

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PD-76 · US 2,929,922 · Filed July 30, 1958 ·

Is this a real patent?: Yes — the original drawing as filed at the U.S. Patent Office, cleaned and printed. Public domain by law.
How is it shipped?: Printed in Europe on 200 g/m² matte paper. Small sizes ship flat, 50 × 70 ships rolled in a tube. Tracking by email.
What if it arrives damaged?: Send a photo within 7 days and we reprint and reship it free.