US3222523A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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 18:10
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.
References Cited (Backward Citations)
DE874620C
Cited
GB708892A
Cited
DE1039144B
Cited
US2841716A
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US2884533A
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GB805912A
Cited
US3075081A
Cited
GB909719A
Cited
US3110808A
Cited
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 |