Patent US5288562A successfully refreshed from Google Patents.
Patent US3222523A successfully refreshed from Google Patents.
US3222523A
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Ionization chamber type radiation dosimeter
Assignee: Landis and Gyr AG
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Filing: 1962-05-02
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Granted: 1965-12-07
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Expires: 1982-05-02
Abstract
No abstract record available.
Inventors
- 👤 Kowalski Emil
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 18:40
CPC Classifications
G; G01; G01T; G01T1/00; G01T1/02; G01T1/14; H; H01; H01J; H01J47/00; H01J47/02; H01J47/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
101 words
AN IRRADIATION DOSIMETER COMPRISING AN IONIZATION CHAMBER THROUGH WHICH CURRENT CAN FLOW AT A RATE WHICH IS A FUNCTION OF THE RADIATION TO WHICH THE CHAMBER IS SUBJECTED; FIRST CAPACITIVE MEANS CONNECTED TO SAID CHAMBER AND BEING ELECTRICALLY CHARGEABLE TO SUPPLY AN OPERATING VOLTAGE TO SAID CHAMBER; SECOND CAPACITIVE MEANS CONNECTED TO SAID CHAMBER FOR INTEGRATING THE CURRENT FLOW THROUGH SAID CHAMBER AND FOR PROVIDING A MEASURE OF THE RADIATION DOSE; AND ELECTRICAL CHARGING CIRCUIT MEANS INTERCONNECTING SAID CHAMBER AND SAID FIRST AND SECOND CAPACITANCES FOR CHARGING SAID SECOND CAPACITIVE MEANS ONLY FROM SAID FIRST CAPACITIVE MEANS VIA SAID IONIZATION CHAMBER.
Claim 2
Dependent Claim
101 words
AN IRRADIATION DOSIMETER COMPRISING AN IONIZATION CHAMBER THROUGH WHICH CURRENT CAN FLOW AT A RATE WHICH IS A FUNCTION OF THE RADIATION TO WHICH THE CHAMBER IS SUBJECTED; FIRST CAPACITIVE MEANS CONNECTED TO SAID CHAMBER AND BEING ELECTRICALLY CHARGEABLE TO SUPPLY AN OPERATING VOLTAGE TO SAID CHAMBER; SECOND CAPACITIVE MEANS CONNECTED TO SAID CHAMBER FOR INTEGRATING THE CURRENT FLOW THROUGH SAID CHAMBER AND FOR PROVIDING A MEASURE OF THE RADIATION DOSE; AND ELECTRICAL CHARGING CIRCUIT MEANS INTERCONNECTING SAID CHAMBER AND SAID FIRST AND SECOND CAPACITANCES FOR CHARGING SAID SECOND CAPACITIVE MEANS ONLY FROM SAID FIRST CAPACITIVE MEANS VIA SAID IONIZATION CHAMBER.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-12-06 | 1969-06-07 | 1969-12-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-06 | 1973-06-07 | 1973-12-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-06 | 1977-06-07 | 1977-12-07 | $7700.00 | Window Closed / Lapsed |