Patent US1892378A successfully refreshed from Google Patents.
Patent US3245156A successfully refreshed from Google Patents.
US3245156A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Audio-visual display system
Assignee: Northrop Grumman Corp
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Filing: 1963-09-23
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Granted: 1966-04-12
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Expires: 1983-09-23
Abstract
No abstract record available.
Inventors
- 👤 Bloois Roger C De
- 👤 Jack M Duer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 12:14
CPC Classifications
G; G09; G09B; G09B5/00; G09B5/06; G09B5/067
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
160 words
AN AUDIO-VISUAL DISPLAY SYSTEM COMPRISING A CASE, MAGNETIC PLAYBACK MEANS MOUNTED ON SAID CASE FOR PRESENTING AUDIO INFORMATION AND COMMAND CUE SIGNALS SAID MEANS FOR PRESENTING AUDIO INFORMATION INCLUDING A MAGNETIC TAPE TRANSPORT MECHANISM, MEANS FOR PRESENTING VISUAL INFORMATION MOUNTED WITHIN SAID CASE, SAID MEANS FOR PRESENTING VISUAL INFORMATION INCLUDING AN OPTICAL DISPLAY SYSTEM AND A SLIDE CHANGER MECHANISM, SAID SLIDE CHANGER MECHANISM BEING RESPONSIVE TO SAID COMMAND CUE SIGNALS, AND MEANS FOR CONTROLLING AND COORDINATING THE PRESENTATION OF SAID AUDIO AND VISUAL INFORMATION COMPRISING A POWER SOURCE, MANUALLY OPERABLE SWITCH MEANS FOR SIMULTANEOUSLY INITIATING THE PRESENTATION OF SAID AUDIO AND VISUAL INFORMATION, AUDIO RESPONSIVE SWITCH MEANS FOR ASSUMING CONTROL OF THE PRESENTATION OF SAID IMFORMATION WHEN AUDIO INFORMATION APPEARS AND FOR AUTOMATICALLY STOPPING THE PRESENTATION OF SAID INFORMATION WHEN THERE IS A PREDETERMINED MINIMUM TIME LAPSE IN THE ARRIVAL OF SAID AUDIO INFORMATION, SAID MANUALLY OPERABLE SWITCH MEANS BEING ADAPTED TO RE-INITIATE PRESENTATION OF SAID AUDIO AND VISUAL INFORMATION,
Claim 2
Dependent Claim
160 words
AN AUDIO-VISUAL DISPLAY SYSTEM COMPRISING A CASE, MAGNETIC PLAYBACK MEANS MOUNTED ON SAID CASE FOR PRESENTING AUDIO INFORMATION AND COMMAND CUE SIGNALS SAID MEANS FOR PRESENTING AUDIO INFORMATION INCLUDING A MAGNETIC TAPE TRANSPORT MECHANISM, MEANS FOR PRESENTING VISUAL INFORMATION MOUNTED WITHIN SAID CASE, SAID MEANS FOR PRESENTING VISUAL INFORMATION INCLUDING AN OPTICAL DISPLAY SYSTEM AND A SLIDE CHANGER MECHANISM, SAID SLIDE CHANGER MECHANISM BEING RESPONSIVE TO SAID COMMAND CUE SIGNALS, AND MEANS FOR CONTROLLING AND COORDINATING THE PRESENTATION OF SAID AUDIO AND VISUAL INFORMATION COMPRISING A POWER SOURCE, MANUALLY OPERABLE SWITCH MEANS FOR SIMULTANEOUSLY INITIATING THE PRESENTATION OF SAID AUDIO AND VISUAL INFORMATION, AUDIO RESPONSIVE SWITCH MEANS FOR ASSUMING CONTROL OF THE PRESENTATION OF SAID IMFORMATION WHEN AUDIO INFORMATION APPEARS AND FOR AUTOMATICALLY STOPPING THE PRESENTATION OF SAID INFORMATION WHEN THERE IS A PREDETERMINED MINIMUM TIME LAPSE IN THE ARRIVAL OF SAID AUDIO INFORMATION, SAID MANUALLY OPERABLE SWITCH MEANS BEING ADAPTED TO RE-INITIATE PRESENTATION OF SAID AUDIO AND VISUAL INFORMATION,
References Cited (Backward Citations)
US2252327A
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US2340863A
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US2975672A
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US2985069A
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US3177767A
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US3187626A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-04-11 | 1969-10-11 | 1970-04-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-11 | 1973-10-11 | 1974-04-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-11 | 1977-10-11 | 1978-04-12 | $7700.00 | Window Closed / Lapsed |