US2761073A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radiation dosimeter for indicating gamma and x-ray radiation
Assignee: Individual
•
Filing: 1953-06-19
•
Granted: 1956-08-28
•
Expires: 1973-06-19
Abstract
No abstract record available.
Inventors
- 👤 Carlbom Lars Erik
- 👤 Hedlund Lars Gunnar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:01
CPC Classifications
H; H01; H01J; H01J47/00; H01J47/02; H01J47/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
117 words
IN AN ELECTROMETRIC SYSTEM THE COMBINATION WITH AN ELECTROMETRIC ELEMENT OF SAID SYSTEM RESPONSIVE TO ELECTRICAL CHARGES, OF A CHARGING DEVICE WHICH COMPRISES A WALL OF ELECTRICALLY INSULATING MATERIAL, A MOBILE BODY DISPOSED ADJACENT ONE FACE OF SAID WALL, MEANS CONFINING SAID MOBILE BODY FOR MOVEMENT THEREOF ALONG SAID WALL IN ENGAGEMENT THEREWITH SO AS TO GENERATE ELECTRICAL CHARGES ON SAID WALL, A LAYER OF CONDUCTIVE MATERIAL DISPOSED IN INDUCTIVE RELATION TO SAID WALL ADJACENT THE FACE OF SAID WALL OPPOSITE TO SAID FACE THEREOF ENGAGED BY SAID MOBILE BODY, AND MEANS FOR ELECTRICALLY CONNECTING SAID CONDUCTIVE LAYER TO SAID ELEMENT OF SAID ELECTROMETRIC SYSTEM TO CHARGE SAID ELEMENT WITH ELECTRICAL CHARGES DEVELOPED UPON SAID CONDUCTIVE LAYER.
Claim 2
Dependent Claim
117 words
IN AN ELECTROMETRIC SYSTEM THE COMBINATION WITH AN ELECTROMETRIC ELEMENT OF SAID SYSTEM RESPONSIVE TO ELECTRICAL CHARGES, OF A CHARGING DEVICE WHICH COMPRISES A WALL OF ELECTRICALLY INSULATING MATERIAL, A MOBILE BODY DISPOSED ADJACENT ONE FACE OF SAID WALL, MEANS CONFINING SAID MOBILE BODY FOR MOVEMENT THEREOF ALONG SAID WALL IN ENGAGEMENT THEREWITH SO AS TO GENERATE ELECTRICAL CHARGES ON SAID WALL, A LAYER OF CONDUCTIVE MATERIAL DISPOSED IN INDUCTIVE RELATION TO SAID WALL ADJACENT THE FACE OF SAID WALL OPPOSITE TO SAID FACE THEREOF ENGAGED BY SAID MOBILE BODY, AND MEANS FOR ELECTRICALLY CONNECTING SAID CONDUCTIVE LAYER TO SAID ELEMENT OF SAID ELECTROMETRIC SYSTEM TO CHARGE SAID ELEMENT WITH ELECTRICAL CHARGES DEVELOPED UPON SAID CONDUCTIVE LAYER.
References Cited (Backward Citations)
US2646516A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-08-28 | 1960-02-27 | 1960-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-08-28 | 1964-02-27 | 1964-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-08-28 | 1968-02-27 | 1968-08-28 | $7700.00 | Window Closed / Lapsed |