US3077538A
Expired / Lapsed
US
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Apparatus for measuring radiant flux
Assignee: Arthur D Little Inc
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Filing: 1959-12-21
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Granted: 1963-02-12
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Expires: 1979-12-21
Abstract
No abstract record available.
Inventors
- 👤 Franzen Wolfgang
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 01:52
CPC Classifications
G; G01; G01J; G01J5/00; G01J5/10; G01J5/20; Y; Y10; Y10S; Y10S505/00; Y10S505/825; Y10S505/848; Y10S505/849
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
106 words
THERMAL DETECTING DEVICE FOR MEASURING INTENSITY OF RADIATION, COMPRISING SUPERCONDUCTIVE SENSING ELEMENT MEANS RESPONSIVE TO RADIANT FLUX INCIDENT THEREON, TEMPERATURE-CONTROLLING MEANS FOR MAINTAINING THE TERMINAL ENDS OF SAID ELEMENT MEANS IN A SUPERCONDUCTIVE STATE, MEANS FOR MAINTAINING THE CENTRAL PORTION OF SAID ELEMENT IN THE NORMAL RESISTIVE STATE, FIRST CIRCUIT MEANS ADAPTED TO PROVIDE A STABLE CURRENT IN SAID ELEMENT THEREBY TO MAINTAIN SAID CENTRAL PORTION IN THE NORMAL RESISTIVE STATE, AND SECOND CIRCUIT MEANS FOR MEASURING VARIATIONS IN RESISTANCE CORRESPONDING TO VARIATIONS IN THE LENGTH OF SAID CENTRAL PORTION IN RESPONSIVE RELATION TO SAID RADIANT FLUX INCIDENT ON SAID CENTRAL PORTION OF SAID SENSING ELEMENT.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-02-11 | 1966-08-13 | 1967-02-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-02-11 | 1970-08-13 | 1971-02-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-02-11 | 1974-08-13 | 1975-02-12 | $7700.00 | Window Closed / Lapsed |