US3230372A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nuclear radiation detector with control grid
Assignee: Individual
•
Filing: 1963-08-09
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Granted: 1966-01-18
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Expires: 1983-08-09
Abstract
No abstract record available.
Inventors
- 👤 Howard P Spracklen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:57
CPC Classifications
H; H01; H01J; H01J47/00; H01J47/02; G; G01; G01T; G01T1/00; G01T1/16; G01T1/185
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
76 words
IN AN IONIZATION CHAMBER CONTAINING A GAS IONIZABLE BY RADIATION AND HAVING CATHODIC AND ANODIC COLLECTOR ELECTRODES, THE COMBINATION THEREWITH OF AT LEAST ONE AUXILIARY ION CURRENT COLLECTOR ELECTRODE DISPOSED IN SPACED RELATIONSHIP TO SAID ANODIC AND CATHODIC COLLECTOR ELECTRODES IN THE SENSITIVE VOLUME OF SAID IONIZATION CHAMBER, AND A VARIABLE VOLTAGE SOURCE MEANS CONNECTED TO AT LEAST ONE OF SAID CATHODIC AND ANODIC COLLECTOR ELECTRODES AND RESPONSIVE TO THE ION CURRENT ARRIVING THEREAT TO ES-
Claim 2
Dependent Claim
76 words
IN AN IONIZATION CHAMBER CONTAINING A GAS IONIZABLE BY RADIATION AND HAVING CATHODIC AND ANODIC COLLECTOR ELECTRODES, THE COMBINATION THEREWITH OF AT LEAST ONE AUXILIARY ION CURRENT COLLECTOR ELECTRODE DISPOSED IN SPACED RELATIONSHIP TO SAID ANODIC AND CATHODIC COLLECTOR ELECTRODES IN THE SENSITIVE VOLUME OF SAID IONIZATION CHAMBER, AND A VARIABLE VOLTAGE SOURCE MEANS CONNECTED TO AT LEAST ONE OF SAID CATHODIC AND ANODIC COLLECTOR ELECTRODES AND RESPONSIVE TO THE ION CURRENT ARRIVING THEREAT TO ES-
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) | 1969-01-17 | 1969-07-19 | 1970-01-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-17 | 1973-07-19 | 1974-01-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-17 | 1977-07-19 | 1978-01-18 | $7700.00 | Window Closed / Lapsed |