Patent US3341951A successfully refreshed from Google Patents.
US3341951A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Display control for testing and teaching device
Assignee: Individual
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Filing: 1965-10-08
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Granted: 1967-09-19
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Expires: 1985-10-08
Abstract
No abstract record available.
Inventors
- 👤 Barnette Gaspar Cisneros
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 19:02
CPC Classifications
G; G09; G09B; G09B5/00; G09B5/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
121 words
A CONTROL CIRCUIT FOR PROVIDING A DISPLACY OF A RECORD MEMBER ON A VIEWING ELEMENT IN A TACHISTOSCOPIC DEVICE FOR A PREDETERMINED, VARIABLY SELECTABLE DURATION, COMPRISING MEANS IN SAID TACHISTOSCOPIC DEVICE FOR PROVIDING A SOURCE OF ILLUMINATION; MEANS IN SAID TACHISTOSCOPIC DEVICE FOR PROVIDING ILLUMINATION OF THE VIEWING ELEMENT THROUGH AN OPTICAL PATH FOR A VARIABLE INTERVAL IN RESPONSE TO A CONTROL SIGNAL; MEANS DISPOSED IN THE OPTICAL PATH FOR PROVIDING A RECORD MEMBER TO BE ILLUMINATED ON THE VIEWING ELEMENT; AND CONTROL MEANS INCLUDING A MONOSTABLE MULTIVIBRATOR HAVING A PAIR OF ACTIVE ELEMENTS, AND MEANS FOR VARYING THE REGENERATIVE TIME CONSTANT OF SAID MULTIVIBRATOR, SAID CONTROL MEANS BEING COUPLED TO PROVIDE THE CONTROL SIGNAL TO SAID MEANS FOR PROVIDING ILLUMINATION.
Claim 2
Dependent Claim
121 words
A CONTROL CIRCUIT FOR PROVIDING A DISPLACY OF A RECORD MEMBER ON A VIEWING ELEMENT IN A TACHISTOSCOPIC DEVICE FOR A PREDETERMINED, VARIABLY SELECTABLE DURATION, COMPRISING MEANS IN SAID TACHISTOSCOPIC DEVICE FOR PROVIDING A SOURCE OF ILLUMINATION; MEANS IN SAID TACHISTOSCOPIC DEVICE FOR PROVIDING ILLUMINATION OF THE VIEWING ELEMENT THROUGH AN OPTICAL PATH FOR A VARIABLE INTERVAL IN RESPONSE TO A CONTROL SIGNAL; MEANS DISPOSED IN THE OPTICAL PATH FOR PROVIDING A RECORD MEMBER TO BE ILLUMINATED ON THE VIEWING ELEMENT; AND CONTROL MEANS INCLUDING A MONOSTABLE MULTIVIBRATOR HAVING A PAIR OF ACTIVE ELEMENTS, AND MEANS FOR VARYING THE REGENERATIVE TIME CONSTANT OF SAID MULTIVIBRATOR, SAID CONTROL MEANS BEING COUPLED TO PROVIDE THE CONTROL SIGNAL TO SAID MEANS FOR PROVIDING ILLUMINATION.
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) | 1970-09-18 | 1971-03-20 | 1971-09-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-18 | 1975-03-20 | 1975-09-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-18 | 1979-03-20 | 1979-09-19 | $7700.00 | Window Closed / Lapsed |