US3144089A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Exposure meter
Assignee: Union Carbide Corp
•
Filing: 1958-02-26
•
Granted: 1964-08-11
•
Expires: 1978-02-26
Abstract
No abstract record available.
Inventors
- 👤 Richard N Lane
- 👤 James J Moore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:49
CPC Classifications
G; G01; G01H; G01H3/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
115 words
A DEVICE INDICATING ACCUMULATED EXPOSURE TO A SIGNAL, WHICH DEVICE COMPRISES IN COMBINATION A TRANSDUCER FOR CONVERING SUCH SIGNAL TO ELECTRICAL ENERGY, A RECTIFIER FOR PASSING CURRENT OF DESIRED POLARITY FROM SAID TRANSDUCER; AND AN ELECTROCHEMICAL INTEGRATOR, SAID INTEGRATOR COMPRISING A VESSEL SEPARATED INTO TWO COMPARTMENTS, ONE OF WHICH COMPARTMENTS CONTAINS A SOLUTION OF A SPECIES OF A REVERSIBLE REDOX SYSTEM AND THE OTHER OF SAID COMPARTMENTS CONTAINING A SOLUTION OF ANOTHER SPECIES OF SAID SYSTEM, SAID INTEGRATOR RECEIVING CURRENT PASSED BY SAID RECTIFIER WHICH CURRENT CAUSES ONE OF SAID SPECIES TO BE TRANSFERRED FROM ONE COMPARTMENTN TO THE OTHER, THEREBY PRODUCING AN OBSERVALBE INDICATION OF THE INTEGRAL OF THE SIGNAL RECEIVED BY SAID TRANSDUCER.
Claim 2
Independent Claim
115 words
A DEVICE INDICATING ACCUMULATED EXPOSURE TO A SIGNAL, WHICH DEVICE COMPRISES IN COMBINATION A TRANSDUCER FOR CONVERING SUCH SIGNAL TO ELECTRICAL ENERGY, A RECTIFIER FOR PASSING CURRENT OF DESIRED POLARITY FROM SAID TRANSDUCER; AND AN ELECTROCHEMICAL INTEGRATOR, SAID INTEGRATOR COMPRISING A VESSEL SEPARATED INTO TWO COMPARTMENTS, ONE OF WHICH COMPARTMENTS CONTAINS A SOLUTION OF A SPECIES OF A REVERSIBLE REDOX SYSTEM AND THE OTHER OF SAID COMPARTMENTS CONTAINING A SOLUTION OF ANOTHER SPECIES OF SAID SYSTEM, SAID INTEGRATOR RECEIVING CURRENT PASSED BY SAID RECTIFIER WHICH CURRENT CAUSES ONE OF SAID SPECIES TO BE TRANSFERRED FROM ONE COMPARTMENTN TO THE OTHER, THEREBY PRODUCING AN OBSERVALBE INDICATION OF THE INTEGRAL OF THE SIGNAL RECEIVED BY SAID TRANSDUCER.
References Cited (Backward Citations)
US281352A
Cited
US925064A
Cited
US2413936A
Cited
US2469282A
Cited
US2480607A
Cited
US2590460A
Cited
US2884085A
Cited
US2910648A
Cited
US2890414A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-08-11 | 1968-02-10 | 1968-08-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-08-11 | 1972-02-10 | 1972-08-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-08-11 | 1976-02-10 | 1976-08-11 | $7700.00 | Window Closed / Lapsed |