US3102425A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for temperature integrating
Assignee: Ortech Corp
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Filing: 1962-03-14
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Granted: 1963-09-03
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Expires: 1982-03-14
Abstract
No abstract record available.
Inventors
- 👤 Albert E R Westman
- 👤 Wilhelm W B Schumacher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:26
CPC Classifications
G; G01; G01K; G01K3/00; G01K3/02; G01K3/04; G01K7/00; G01K7/01; G01N; G01N25/00
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
107 words
AN ANALOGUE CIRCUIT FOR THE AUTOMATIC INTEGRATION OF THE ARRHENIUS EQUATION REPRESENTING TEMPERATURE DEPENDENT CHEMICAL REACTION RATES WHICH COMPRISES A VOLTAGE SOURCE, A CONSTANT RESISTOR AND A SEMICONDUCTOR JUNCTION CONNECTED IN A FIRST SERIES CIRCUIT AND A TEMPERATURE SENSITIVE RESISTOR AND AN ELECTRONIC CURRENT INTEGRATOR CONNECTED IN A SECOND SERIES CIRCUIT, SAID SECOND SERIES CIRCUIT BEING IN PARALLEL WITH SAID FIRST MENTIONED RESISTOR, SAID VOLTAGE SOURCE REVERSE BIASING SAID SEMICONDUCTOR JUNCTION AND BEING OF SUFFICIENT MAGNITUDE TO DRAW THE SATURATION VALUE OF THE REVERSE CURRENT OF SAID SEMICONDUCTOR JUNCTION, SAID ELECTRONIC CURRENT INTEGRATOR BEING ADAPTED TO MEASURE THE TOTAL CHARGE WHICH PASSES THROUGH SAID SECOND SERIES CIRCUIT.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-09-02 | 1967-03-04 | 1967-09-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-09-02 | 1971-03-04 | 1971-09-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-09-02 | 1975-03-04 | 1975-09-03 | $7700.00 | Window Closed / Lapsed |