US3354315A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flash photolysis spectroscopic system
Assignee: Monsanto Co
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Filing: 1964-08-25
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Granted: 1967-11-21
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Expires: 1984-08-25
Abstract
No abstract record available.
Inventors
- 👤 James B Preston
- 👤 Rollins S Carter
- 👤 William C Neely
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 21:36
CPC Classifications
G; G01; G01J; G01J3/00; G01J3/28; G01J3/2889
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
149 words
A FLASH PHOTOLYSIS SPECTROSCOPIC SYSTEM FOR USE IN CONDUCTING SPECTROCHEMICAL ANALYSES COMPRISING A SWEEP DELAYABLE OSCILLOSCOPE, A HIGH INTENSITY PHOTOFLASH TUBE, FIRST CAPACITOR DISCHARGE CIRCUIT MEANS INTERCONNECTING SAID PHOTOFLASH TUBE WITH SAID OSCILLOSCOPE TO BE TRIGGERED ON COMMENCEMENT OF A SCOPE SWEEP, A SPECTROFLASH TUBE, SECOND CAPACITOR DISCHARGE CIRCUIT MEANS INTERCONNECTING SAID SPECTROFLASH TUBE WITH SAID OSCILLOSCOPE TO BE TRIGGERED AT A PREDETERMINED INTERVAL AFTER COMMENCEMENT OF A SCOPE SWEEP, A SAMPLE CELL DISPOSED TO RECEIVE LIGHT EMITTED FROM SAID PHOTOFLASH AND SPECTROFLASH TUBES, A SPECTROGRAPH MEANS OPTICALLY ALIGNED WITH SAID SAMPLE CELL, A SHUTTER MECHANISM OPTICALLY INTERPOSED BETWEEN SAID SAMPLE CELL AND SAID SPECTROGRAPH MEANS, A LIGHTSENSITIVE CAPACITOR DISCHARGE CIRCUIT MEANS CONNECTED TO SAID SHUTTER MECHANISM AND OPERATIVE TO ACTUATE SAID SHUTTER MECHANISM TO OPEN POSITION IN RESPONSE TO ENERGIZATION OF SAID PHOTOFLASH TUBE, WHEREBY SAID SHUTTER MECHANISM IS ACTUATED ONLY UPON SUCCESSFUL OPERATION OF SAID PHOTOFLASH TUBE.
References Cited (Backward Citations)
US2559688A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-11-20 | 1971-05-22 | 1971-11-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-20 | 1975-05-22 | 1975-11-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-20 | 1979-05-22 | 1979-11-21 | $7700.00 | Window Closed / Lapsed |