US3092722A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spectro-phosphorescence measuring instrument
Assignee: AMERICAN INSTR CO Inc
•
Filing: 1960-02-25
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Granted: 1963-06-04
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Expires: 1980-02-25
Abstract
No abstract record available.
Inventors
- 👤 Hugh K Howerton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 13:46
CPC Classifications
G; G01; G01N; G01N21/00; G01N21/62; G01N21/63; G01N21/64; G01N21/6408; G01J; G01J3/00; G01J3/28; G01J3/44; G01J3/4406
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
128 words
IN AN APPARATUS FOR MEASURING THE PHOSPHORESCENT RESPONSE OF A MATERIAL INDEPENDENTLY OF ITS FLUORESCENT RESPONSE, A SOURCE OF MONOCHROMATIC EXCITATION RADIATION, A STATIONARY SAMPLE CELL ADAPTED TO CONTAIN THE MATERIAL AND RETAIN IT IN A STATIONARY CONDITION, MEANS DIRECTING RADIATION FROM SAID SOURCE TO SAID CELL, AN EMISSION MONOCHROMATOR MOUNTED IN THE PATH OF PHOSPHORESCENT EMISSION FROM SAID CELL, A PHOTO-SENSITIVE DEVICE MOUNTED IN A POSITION TO RECEIVE A SELECTED SPECTRAL COMPONENT OF THE PHOSPHORESCENT EMISSION FROM SAID MONOCHROMATOR, AND MEANS TO INTRODUCE A TIME DELAY BETWEEN THE RECEPTION OF A PREDETERMINED AMOUNT OF RADIATION FROM SAID SOURCE BY SAID CELL AND THE RECEPTION OF THE RESULTANT EMISSION RADIATION FROM THE CELL BY SAID MONOCHROMATOR, SAID TIME DELAY BEING SUFFICIENT TO ALLOW FLUORESCENT EMISSION TO SUBSTANTIALLY DECAY.
Claim 2
Dependent Claim
128 words
IN AN APPARATUS FOR MEASURING THE PHOSPHORESCENT RESPONSE OF A MATERIAL INDEPENDENTLY OF ITS FLUORESCENT RESPONSE, A SOURCE OF MONOCHROMATIC EXCITATION RADIATION, A STATIONARY SAMPLE CELL ADAPTED TO CONTAIN THE MATERIAL AND RETAIN IT IN A STATIONARY CONDITION, MEANS DIRECTING RADIATION FROM SAID SOURCE TO SAID CELL, AN EMISSION MONOCHROMATOR MOUNTED IN THE PATH OF PHOSPHORESCENT EMISSION FROM SAID CELL, A PHOTO-SENSITIVE DEVICE MOUNTED IN A POSITION TO RECEIVE A SELECTED SPECTRAL COMPONENT OF THE PHOSPHORESCENT EMISSION FROM SAID MONOCHROMATOR, AND MEANS TO INTRODUCE A TIME DELAY BETWEEN THE RECEPTION OF A PREDETERMINED AMOUNT OF RADIATION FROM SAID SOURCE BY SAID CELL AND THE RECEPTION OF THE RESULTANT EMISSION RADIATION FROM THE CELL BY SAID MONOCHROMATOR, SAID TIME DELAY BEING SUFFICIENT TO ALLOW FLUORESCENT EMISSION TO SUBSTANTIALLY DECAY.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-06-03 | 1966-12-03 | 1967-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-06-03 | 1970-12-03 | 1971-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-06-03 | 1974-12-03 | 1975-06-04 | $7700.00 | Window Closed / Lapsed |