Patent US3207938A successfully refreshed from Google Patents.
US3207938A
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Superatmospheric pressure ionization chamber for detection of radiant energy
Assignee: Individual
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Filing: 1961-10-31
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Granted: 1965-09-21
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Expires: 1981-10-31
Abstract
No abstract record available.
Inventors
- 👤 Anton Nicholas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 17:06
CPC Classifications
H; H01; H01J; H01J47/00; H01J47/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
87 words
A RADIANT ENERGY DETECTOR RESPONSIVE TO BOTH GAMMA RADIATION AND TO BETA RADIATION, COMPRISING A CASING CONTAINING A VOLUME OF IONIZABLE GAS UNDER SUPER-ATMOSPHERIC PRESSURE AND HAVING A WALL FORMING A CATHODE ELECTRODE, AND AN ANODE ELECTRODE WITHIN SAID CASING, SAID WALL BEING FORMED OF A MATERIAL RESPONSIVE TO GAMMA RADIATION TO PRODUCE HIGH ENERGY ELECTRONS AND BEING MULTIPLY APERTURED TO PERMIT PASSAGE OF BETA RADIATION, AND A METAL FOIL LINING READILY PERMEABLE TO SAID BETA RADIATION AND EXTENDING OVER SAID APERTURED WALL AT THE INTERIOR THEREOF.
Claim 2
Dependent Claim
87 words
A RADIANT ENERGY DETECTOR RESPONSIVE TO BOTH GAMMA RADIATION AND TO BETA RADIATION, COMPRISING A CASING CONTAINING A VOLUME OF IONIZABLE GAS UNDER SUPER-ATMOSPHERIC PRESSURE AND HAVING A WALL FORMING A CATHODE ELECTRODE, AND AN ANODE ELECTRODE WITHIN SAID CASING, SAID WALL BEING FORMED OF A MATERIAL RESPONSIVE TO GAMMA RADIATION TO PRODUCE HIGH ENERGY ELECTRONS AND BEING MULTIPLY APERTURED TO PERMIT PASSAGE OF BETA RADIATION, AND A METAL FOIL LINING READILY PERMEABLE TO SAID BETA RADIATION AND EXTENDING OVER SAID APERTURED WALL AT THE INTERIOR THEREOF.
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) | 1968-09-20 | 1969-03-22 | 1969-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-20 | 1973-03-22 | 1973-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-20 | 1977-03-22 | 1977-09-21 | $7700.00 | Window Closed / Lapsed |