Patent US3947378A successfully refreshed from Google Patents.
US3414733A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Annularly shaped light emitter and photocell connected by plug-in light conducting pad
Assignee: HP Inc
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Filing: 1965-02-15
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Granted: 1968-12-03
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Expires: 1985-02-15
Abstract
No abstract record available.
Inventors
- 👤 Wunderman Irwin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:56
CPC Classifications
H; H04; H04B; H04B10/00; H04B10/25; G; G02; G02B; G02B6/00; G02B6/24; G02B6/42; G02B6/4201; G02B6/4202; G02B6/4249; G02B6/4292; G02B6/4295; H10; H10F; H10F99/00; H10H; H10H20/00; H10H20/80
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
164 words
A RADIATION COUPLED SEMICONDUCTOR DEVICE COMPRISING: A FIRST SUBSTRATE PORTION INCLUDING FIRST AND SECOND SEMICONDUCTOR REGIONS OF OPPOSITE CONDUCTIVITY TYPE; A FIRST JUNCTION BETWEEN SAID FIRST AND SECOND SEMICONDUCTOR REGIONS OF OPPOSITE CONDUCTIVITY TYPE, SAID FIRST JUNCTION HAVING A RADIATING END AND BEING OPERABLE FOR PRODUCING RADIATION FROM THE RADIATING END OF A PLANE TANGENT TO THE FIRST JUNCTION; MEANS FOR BIASING THE FIRST JUNCTION TO PRODUCE SAID RADIATION; A SECOND SUBSTRATE PORTION INCLUDING THIRD AND FOURTH SEMICONDUCTOR REGIONS OF OPPOSITE CONDUCTIVITY TYPE; A SECOND JUNCTION BETWEEN SAID THIRD AND FOURTH SEMICONDUCTOR REGIONS OF OPPOSITE CONDUCTIVITY TYPE; SAID SECOND JUNCTION BEING SPACED FROM THE FIRST JUNCTION AND HAVING A RECEIVING END FOR RECEIVING RADIATION; AND COUPLING MEANS FORMING A PATH THAT IS MORE HIGHLY REFRACTIVE THAN THE SURROUNDING MEDIUM, SAID PATH BEING IN CONTINGUITY WHEN THE RADIATING END OF THE FIRST JUNCTION AND THE RECEIVING END OF THE SECOND JUNCTION AND BEING ARRANGED FOR COUPLING RADIATION FROM THE RADIATING END TO THE RECEIVING END.
Claim 2
Dependent Claim
164 words
A RADIATION COUPLED SEMICONDUCTOR DEVICE COMPRISING: A FIRST SUBSTRATE PORTION INCLUDING FIRST AND SECOND SEMICONDUCTOR REGIONS OF OPPOSITE CONDUCTIVITY TYPE; A FIRST JUNCTION BETWEEN SAID FIRST AND SECOND SEMICONDUCTOR REGIONS OF OPPOSITE CONDUCTIVITY TYPE, SAID FIRST JUNCTION HAVING A RADIATING END AND BEING OPERABLE FOR PRODUCING RADIATION FROM THE RADIATING END OF A PLANE TANGENT TO THE FIRST JUNCTION; MEANS FOR BIASING THE FIRST JUNCTION TO PRODUCE SAID RADIATION; A SECOND SUBSTRATE PORTION INCLUDING THIRD AND FOURTH SEMICONDUCTOR REGIONS OF OPPOSITE CONDUCTIVITY TYPE; A SECOND JUNCTION BETWEEN SAID THIRD AND FOURTH SEMICONDUCTOR REGIONS OF OPPOSITE CONDUCTIVITY TYPE; SAID SECOND JUNCTION BEING SPACED FROM THE FIRST JUNCTION AND HAVING A RECEIVING END FOR RECEIVING RADIATION; AND COUPLING MEANS FORMING A PATH THAT IS MORE HIGHLY REFRACTIVE THAN THE SURROUNDING MEDIUM, SAID PATH BEING IN CONTINGUITY WHEN THE RADIATING END OF THE FIRST JUNCTION AND THE RECEIVING END OF THE SECOND JUNCTION AND BEING ARRANGED FOR COUPLING RADIATION FROM THE RADIATING END TO THE RECEIVING END.
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) | 1971-12-03 | 1972-06-03 | 1972-12-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-12-03 | 1976-06-03 | 1976-12-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-12-03 | 1980-06-03 | 1980-12-03 | $7700.00 | Window Closed / Lapsed |