US3290509A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electro-optical apparatus and circuit for sensing reflective areas or apertures in tape
Assignee: General Electric Co
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Filing: 1963-10-30
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Granted: 1966-12-06
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Expires: 1983-10-30
Abstract
No abstract record available.
Inventors
- 👤 John D Meng
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:09
CPC Classifications
G; G06; G06K; G06K13/00; G06K13/18; G06K13/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
195 words
AN OBJECT SENSING DEVICE COMPRISING A SOURCE OF UNIDIRECTIONAL PULSES HAVING FIRST AND SECOND UNIDIRECTIONAL PULSE REFERENCE POTENTIALS, FIRST, SECOND AND THIRD SERIALLY CONNECTED ZENER DIODES EACH HAVING AN ANODE AND A CATHODE, RESISTIVE MEANS CONNECTING SAID CATHODE OF SAID FIRST ZENER DIODE TO SAID FIRST REFERENCE POTENTIAL, RESITIVE MEANS CONNECTING SAID ANODE OF SAID THIRD ZENER DIODE TO SAID SECOND REFERENCE POTENTIAL, SAID ANODE OF SAID SECOND ZENER DIODE BEING CONNECTED TO GROUND; A LIGHT ACTUATED SWITCH HAVING AN ANODE AND A CATHODE, A FIRST, SECOND, THIRD AND FOURTH DIODE EACH HAVING AN ANODE AND A CATHODE, SAID ANODE OF SAID FIRST DIODE CONNECTED TO SAID CATHODE OF SAID FIRST ZENER DIODE, RESISTIVE MEANS CONNECTING SAID CATHODE OF SAID FIRST DIODE TO SAID ANODE OF SAID SWITCH TO SAID ANODE OF SAID THIRD ZENER DIODE, SAID SAID SWITCH TO SAID ANODE OF SAID THIRD ZENER DIODE, SAID CATHODE OF SAID SECOND DIODE BEING CONNECTED TO SAID CATHODE OF SAID SECOND ZENER DIODE, SAID ANODE OF SAID SECOND DIODE BEING CONNECTED TO SAID CATHODE OF SAID SWITCH, SAID CATHODE OF SAID THIRD DIODE BEING CONNECTECT TO SAID CATHODE OF SAID SWITCH, SAID ANODE OF SAID
Claim 2
Dependent Claim
195 words
AN OBJECT SENSING DEVICE COMPRISING A SOURCE OF UNIDIRECTIONAL PULSES HAVING FIRST AND SECOND UNIDIRECTIONAL PULSE REFERENCE POTENTIALS, FIRST, SECOND AND THIRD SERIALLY CONNECTED ZENER DIODES EACH HAVING AN ANODE AND A CATHODE, RESISTIVE MEANS CONNECTING SAID CATHODE OF SAID FIRST ZENER DIODE TO SAID FIRST REFERENCE POTENTIAL, RESITIVE MEANS CONNECTING SAID ANODE OF SAID THIRD ZENER DIODE TO SAID SECOND REFERENCE POTENTIAL, SAID ANODE OF SAID SECOND ZENER DIODE BEING CONNECTED TO GROUND; A LIGHT ACTUATED SWITCH HAVING AN ANODE AND A CATHODE, A FIRST, SECOND, THIRD AND FOURTH DIODE EACH HAVING AN ANODE AND A CATHODE, SAID ANODE OF SAID FIRST DIODE CONNECTED TO SAID CATHODE OF SAID FIRST ZENER DIODE, RESISTIVE MEANS CONNECTING SAID CATHODE OF SAID FIRST DIODE TO SAID ANODE OF SAID SWITCH TO SAID ANODE OF SAID THIRD ZENER DIODE, SAID SAID SWITCH TO SAID ANODE OF SAID THIRD ZENER DIODE, SAID CATHODE OF SAID SECOND DIODE BEING CONNECTED TO SAID CATHODE OF SAID SECOND ZENER DIODE, SAID ANODE OF SAID SECOND DIODE BEING CONNECTED TO SAID CATHODE OF SAID SWITCH, SAID CATHODE OF SAID THIRD DIODE BEING CONNECTECT TO SAID CATHODE OF SAID SWITCH, SAID ANODE OF SAID
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) | 1969-12-05 | 1970-06-06 | 1970-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-05 | 1974-06-06 | 1974-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-05 | 1978-06-06 | 1978-12-06 | $7700.00 | Window Closed / Lapsed |