Patent US4483906A successfully refreshed from Google Patents.
Patent US3174079A successfully refreshed from Google Patents.
US3174079A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photoelectric discriminator
Assignee: Eastman Kodak Co
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Filing: 1961-09-14
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Granted: 1965-03-16
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Expires: 1981-09-14
Abstract
No abstract record available.
Inventors
- 👤 Modney William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 16:05
CPC Classifications
G; G03; G03B; G03B27/00; G03B27/72; G03B27/73
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
109 words
A PHOTOELECTRIC DISCRIMINATOR COMPRISING A PAIR OF TRIGGER TUBES HAVING ANODE, CATHODE AND TRIGGER ELECTRODES; CIRCUIT MEANS FOR APPLYING OPERATING POTENTIAL BETWEEN THE ANODE AND CATHODE OF EACH OF SAID TUBES AND INCLUDING A CONTROL RELAY IN SERIES WITH THE ANODE OF ONE OF SAID TUBES; MEANS FOR INDIVIDUALLY CONTROLLING THE POTENTIAL OF THE TRIGGERING ELECTRODE OF EACH TUBE WITH RESPECT TO ITS CATHODE COMPRISING A CAPACITOR AND A PHOTOCELL ASSOCIATED WITH THE TRIGGERING ELECTRODE OF EACH TUBE, AND MEANS FOR SIMULTANEOUSLY CAUSING EACH OF SAID CAPACITORS TO BEING TO CHARGE FROM AN INITIAL VALUE TOWARD A TRIGGERING VALUE AT A RATE CONTROLLED BY THE ILLUMINATOIN ON ITS ASSOCIATED
Claim 2
Dependent Claim
109 words
A PHOTOELECTRIC DISCRIMINATOR COMPRISING A PAIR OF TRIGGER TUBES HAVING ANODE, CATHODE AND TRIGGER ELECTRODES; CIRCUIT MEANS FOR APPLYING OPERATING POTENTIAL BETWEEN THE ANODE AND CATHODE OF EACH OF SAID TUBES AND INCLUDING A CONTROL RELAY IN SERIES WITH THE ANODE OF ONE OF SAID TUBES; MEANS FOR INDIVIDUALLY CONTROLLING THE POTENTIAL OF THE TRIGGERING ELECTRODE OF EACH TUBE WITH RESPECT TO ITS CATHODE COMPRISING A CAPACITOR AND A PHOTOCELL ASSOCIATED WITH THE TRIGGERING ELECTRODE OF EACH TUBE, AND MEANS FOR SIMULTANEOUSLY CAUSING EACH OF SAID CAPACITORS TO BEING TO CHARGE FROM AN INITIAL VALUE TOWARD A TRIGGERING VALUE AT A RATE CONTROLLED BY THE ILLUMINATOIN ON ITS ASSOCIATED
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) | 1968-03-15 | 1968-09-14 | 1969-03-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-15 | 1972-09-14 | 1973-03-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-15 | 1976-09-14 | 1977-03-16 | $7700.00 | Window Closed / Lapsed |