Patent US3304637A successfully refreshed from Google Patents.
US3304637A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Audio-visual device
Assignee: Individual
•
Filing: 1964-10-28
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Granted: 1967-02-21
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Expires: 1984-10-28
Abstract
No abstract record available.
Inventors
- 👤 Tyndale Thomas Conley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:37
CPC Classifications
G; G09; G09B; G09B5/00; G09B5/06; G09B5/067
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
145 words
A CORDLESS AUDIO-VISUAL DEMONSTRATION AID COMPRISING, A HOUSE HAVING A COVER, A FRAME FOR SUPPORTING A PLURALITY OF PICTURES MOUNTED ON THE INTERIOR OF SAID COVER, A PLURALITY OF PICTORIAL TRANSPARENCIES MOUNTED IN SAID FRAME FOR VIEWING WHEN THE COVER IS OPEN, A CORRESPONDING PLURALITY OF ELECTRIC LAMPS MOUNTED IN SAID COVER, EACH OF SAID LAMPS BEING MOUNTED BEHIND A RESPECTIVE ONE OF SAID TRANSPARENCIES FOR ILLUMINATION THEREOF, SAID COVER FURTHER CONTAINING LIGHT DISPERSING MEANS MOUNTED ON SAID FRAME BETWEEN EACH OF SAID LAMPS AND ITS ASSOCIATED TRANSPARENCY, A BATTERY POWERED MAGNETIC TAPE MOUNTED IN SAID HOUSING, SAID PLAYBACK UNIT COMPRISING A LOUD SPEAKER AND A MOVABLE MAGNETIC TAPE CONTAINING AUDIO AND CONTROL INFORMATION, BATTERY MEANS IN SAID HOUSING, AND SWITCHING MEANS CONNECTED IN CIRCUIT WITH SAID BATTERY AND SAID PLURALITY OF LAMPS, SAID SWITCHING MEANS BEING RESPONSIVE TO SAID CONTROL INFORMATION FOR CONNECTING SAID
Claim 2
Dependent Claim
145 words
A CORDLESS AUDIO-VISUAL DEMONSTRATION AID COMPRISING, A HOUSE HAVING A COVER, A FRAME FOR SUPPORTING A PLURALITY OF PICTURES MOUNTED ON THE INTERIOR OF SAID COVER, A PLURALITY OF PICTORIAL TRANSPARENCIES MOUNTED IN SAID FRAME FOR VIEWING WHEN THE COVER IS OPEN, A CORRESPONDING PLURALITY OF ELECTRIC LAMPS MOUNTED IN SAID COVER, EACH OF SAID LAMPS BEING MOUNTED BEHIND A RESPECTIVE ONE OF SAID TRANSPARENCIES FOR ILLUMINATION THEREOF, SAID COVER FURTHER CONTAINING LIGHT DISPERSING MEANS MOUNTED ON SAID FRAME BETWEEN EACH OF SAID LAMPS AND ITS ASSOCIATED TRANSPARENCY, A BATTERY POWERED MAGNETIC TAPE MOUNTED IN SAID HOUSING, SAID PLAYBACK UNIT COMPRISING A LOUD SPEAKER AND A MOVABLE MAGNETIC TAPE CONTAINING AUDIO AND CONTROL INFORMATION, BATTERY MEANS IN SAID HOUSING, AND SWITCHING MEANS CONNECTED IN CIRCUIT WITH SAID BATTERY AND SAID PLURALITY OF LAMPS, SAID SWITCHING MEANS BEING RESPONSIVE TO SAID CONTROL INFORMATION FOR CONNECTING SAID
References Cited (Backward Citations)
US1719518A
Cited
US2092761A
Cited
US2336548A
Cited
GB546174A
Cited
US3048083A
Cited
US3220126A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-02-20 | 1970-08-22 | 1971-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-20 | 1974-08-22 | 1975-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-20 | 1978-08-22 | 1979-02-21 | $7700.00 | Window Closed / Lapsed |