Patent US3126450A successfully refreshed from Google Patents.
US3126450A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable electronic public address apparatus
Assignee: —
•
Filing: —
•
Granted: 1964-03-24
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Expires: 1981-03-24
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:52
CPC Classifications
H; H04; H04R; H04R27/00; H04R27/04
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
100 words
A PORTABLE LECTERN COMPRISING TOP, BOTTOM AND SIDE WALLS FORMING A LOUDSPEAKER ENCLOSURE, THE REAR EDGE OF EACH OF SAID SIDE WALLS INCLUDING A LOWER VERTICAL PORTION AND A FORWARDLY AND UPWARDLY SLOPING PORTION AT THE UPPER END OF SAID LOWER VERTICAL PORTION, AN INCLINED PANEL CONNECTED TO SAID SLOPING EDGE PORTIONS, A PAIR OF REAR DOORS PIVOTALLY CONNECTED TO SAID LOWER VERTICAL PORTIONS FOR SWINGING MOVEMENTS BETWEEN CLOSED POSITIONS IN WHICH THEY EXTEND APPROXIMATELY AT RIGHT ANGLES TO SAID SIDE WALLS AND OPEN POSITIONS IN WHICH THEY EXTEND APPROXIMATELY IN THE SAME PLANES AS SAID SIDE WALLS, THE UPPER
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-03-24 | 1967-09-23 | 1968-03-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-03-24 | 1971-09-23 | 1972-03-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-03-24 | 1975-09-23 | 1976-03-24 | $7700.00 | Window Closed / Lapsed |