Patent US2741709A successfully refreshed from Google Patents.
US2741709A
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Detector for indicating spectral distribution of penetrative radiation
Assignee: Texaco Development Corp
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Filing: 1952-04-26
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Granted: 1956-04-10
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Expires: 1972-04-26
Abstract
No abstract record available.
Inventors
- 👤 Arthur L Tirico
- 👤 Raymond J Ruble
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:12
CPC Classifications
G; G01; G01T; G01T1/00; G01T1/16; G01T1/18; H; H01; H01J; H01J47/00; H01J47/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
95 words
A RADIATION DETECTOR OF THE GEIGER-MUELLER TYPE COMPRISING AN ENVELOPE HAVING A WINDOW WALL FOR RECEIVING ON ITS OUTSIDE SURFACE IMPIGEMENT OF THE RADIATION TO BE DETECTED, A MULTIPLE-PLATE CATHODE ARRAY MOUNTED WITHIN THE ENVELOPE AND COMPRISING A PLURALITY OF SPACEDAPART CATHODE ELEMENTS WHICH ARE SUBSTANTIALLY PARALLEL TO EACH OTHER AND TO SAID WALL, PREDETERMINED ONES OF SAID ELEMENTS WHICH ARE POSITIONED ALONG THE ARRAY AT PROGRESSIVELY GREATER DISTANCES FROM SAID WALL HAVING PROGRESSIVELY GREATER ABSORBING POWER FOR SAID RADIATION SAID WALL HAVING NO GREATER ABSORBING POWER FOR SAID RADIATION THAN ANY OF SAID ELEMENTS.
Claim 2
Dependent Claim
95 words
A RADIATION DETECTOR OF THE GEIGER-MUELLER TYPE COMPRISING AN ENVELOPE HAVING A WINDOW WALL FOR RECEIVING ON ITS OUTSIDE SURFACE IMPIGEMENT OF THE RADIATION TO BE DETECTED, A MULTIPLE-PLATE CATHODE ARRAY MOUNTED WITHIN THE ENVELOPE AND COMPRISING A PLURALITY OF SPACEDAPART CATHODE ELEMENTS WHICH ARE SUBSTANTIALLY PARALLEL TO EACH OTHER AND TO SAID WALL, PREDETERMINED ONES OF SAID ELEMENTS WHICH ARE POSITIONED ALONG THE ARRAY AT PROGRESSIVELY GREATER DISTANCES FROM SAID WALL HAVING PROGRESSIVELY GREATER ABSORBING POWER FOR SAID RADIATION SAID WALL HAVING NO GREATER ABSORBING POWER FOR SAID RADIATION THAN ANY OF SAID ELEMENTS.
References Cited (Backward Citations)
DE715337C
Cited
US2445305A
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US2440511A
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US2469460A
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US2649554A
Cited
US2536314A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-04-10 | 1959-10-10 | 1960-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-04-10 | 1963-10-10 | 1964-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-04-10 | 1967-10-10 | 1968-04-10 | $7700.00 | Window Closed / Lapsed |