Patent US2797879A successfully refreshed from Google Patents.
Patent US3254218A successfully refreshed from Google Patents.
US3254218A
Expired / Lapsed
US
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Pulse paralysis system for scintillation detectors
Assignee: Dresser Industries Inc
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Filing: 1962-12-31
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Granted: 1966-05-31
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Expires: 1982-12-31
Abstract
No abstract record available.
Inventors
- 👤 Eric C Hopkinson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 19:07
CPC Classifications
G; G01; G01T; G01T1/00; G01T1/16; G01T1/20; G01T1/208; G01V; G01V5/00; G01V5/04; G01V5/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
121 words
IN A RADIATION DETECTION SYSTEM INCLUDING A COMBINATION A PHOSPHOR ARRANGED AND ADAPTED TO PRODUCE A SCINTILLATION IN RESPONSE TO SUBSTANTIALLY EACH INCIDENT RADAATION OF SUITABLE CHARACTER; A NORMALLY CONDUCTING PHOTOMULTIPLIER TUBE HAVING A PHOTOCATHODE ARRANGED TO EMIT SEPARATE PULSES OF PRIMARY ELECTRONS IN RESPONSE TO SEPARATELY OCCURING SCINTILLATIONS, AT LEAST ONE DYNODE ARRANGED AT A FIRST POTENTIAL RELATIVE TO SAID PHOTOCATHODE TO ACCELERATE SAID PRIMARY ELECTRONS AND IN RESPONSE THERETO TO EMIT SECONDARY ELECTRONS, AND AN ANODE ARRANGED TO DEVELOP A FIRST PULSE OF ELECTRIC CURRENT FUNCTIONALLY RELATED TO SAID SECONDARY ELECTRONS; AND MEANS INCLUDING A CABLE CONNECTED BETWEEN SAID ANODE AND A POINT REMOTE FROM SAID SYSTEM FOR CONDUCTING SAID FIRST PULSE OF ELECTRIC CURRENT TO SAID REMOTE POINT;
Claim 2
Dependent Claim
121 words
IN A RADIATION DETECTION SYSTEM INCLUDING A COMBINATION A PHOSPHOR ARRANGED AND ADAPTED TO PRODUCE A SCINTILLATION IN RESPONSE TO SUBSTANTIALLY EACH INCIDENT RADAATION OF SUITABLE CHARACTER; A NORMALLY CONDUCTING PHOTOMULTIPLIER TUBE HAVING A PHOTOCATHODE ARRANGED TO EMIT SEPARATE PULSES OF PRIMARY ELECTRONS IN RESPONSE TO SEPARATELY OCCURING SCINTILLATIONS, AT LEAST ONE DYNODE ARRANGED AT A FIRST POTENTIAL RELATIVE TO SAID PHOTOCATHODE TO ACCELERATE SAID PRIMARY ELECTRONS AND IN RESPONSE THERETO TO EMIT SECONDARY ELECTRONS, AND AN ANODE ARRANGED TO DEVELOP A FIRST PULSE OF ELECTRIC CURRENT FUNCTIONALLY RELATED TO SAID SECONDARY ELECTRONS; AND MEANS INCLUDING A CABLE CONNECTED BETWEEN SAID ANODE AND A POINT REMOTE FROM SAID SYSTEM FOR CONDUCTING SAID FIRST PULSE OF ELECTRIC CURRENT TO SAID REMOTE POINT;
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) | 1969-05-30 | 1969-11-29 | 1970-05-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-30 | 1973-11-29 | 1974-05-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-30 | 1977-11-29 | 1978-05-31 | $7700.00 | Window Closed / Lapsed |