US2731568A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radiation detection device
Assignee: Individual
•
Filing: 1951-08-14
•
Granted: 1956-01-17
•
Expires: 1971-08-14
Abstract
No abstract record available.
Inventors
- 👤 Failla Gioacchino
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:21
CPC Classifications
H; H01; H01J; H01J47/00; H01J47/02; H01J47/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
74 words
A DEVICE FOR INDICATING THE PRESENCE AND INTENSITY OF IONIZING RADIATION WHICH COMPRISES A SEALED CONTAINER CONTAINING A DIELECTRIC MATERIAL, AN IONIZABLE GAS WITHIN SAID CONTAINER, AT LEAST ONE SMALL SPHERICAL ELEMENT WITHIN SAID CONTAINER FREE TO MOVE IN SAID CONTAINER IN CONTACT WITH THE DIELECTRIC MATERIAL TO SEPARATE TRIBOELECTRIC CHARGE AND AT LEAST ANOTHER SUCH SPHERICAL ELEMENT WITHIN SAID CONTAINER BEING ADAPTED TO BE DISPLACED BY SAID CHARGE AGAINST THE FORCE OF GRAVITY.
Claim 2
Independent Claim
74 words
A DEVICE FOR INDICATING THE PRESENCE AND INTENSITY OF IONIZING RADIATION WHICH COMPRISES A SEALED CONTAINER CONTAINING A DIELECTRIC MATERIAL, AN IONIZABLE GAS WITHIN SAID CONTAINER, AT LEAST ONE SMALL SPHERICAL ELEMENT WITHIN SAID CONTAINER FREE TO MOVE IN SAID CONTAINER IN CONTACT WITH THE DIELECTRIC MATERIAL TO SEPARATE TRIBOELECTRIC CHARGE AND AT LEAST ANOTHER SUCH SPHERICAL ELEMENT WITHIN SAID CONTAINER BEING ADAPTED TO BE DISPLACED BY SAID CHARGE AGAINST THE FORCE OF GRAVITY.
References Cited (Backward Citations)
GB169918A
Cited
US1501185A
Cited
US1882294A
Cited
US1974782A
Cited
US2449880A
Cited
US2646516A
Cited
US2700109A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-01-16 | 1959-07-18 | 1960-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-01-16 | 1963-07-18 | 1964-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-01-16 | 1967-07-18 | 1968-01-17 | $7700.00 | Window Closed / Lapsed |