Patent US3273968A successfully refreshed from Google Patents.
US3273968A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat-burst microcalorimeter
Assignee: Individual
•
Filing: 1960-03-23
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Granted: 1966-09-20
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Expires: 1980-03-23
Abstract
No abstract record available.
Inventors
- 👤 Theodor H Benzinger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:19
CPC Classifications
G; G01; G01N; G01N25/00; G01N25/20; G01N25/48
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
133 words
FOR THE USE IN A HEAT-BURST MICROCALORIMETER, THE SUBCOMBINATION OF A REACTION VESSEL, A HELICAL CONDUCTOR MADE OF A FIRST METAL, EACH TURN THEREOF HAVING A CORRESPONDING HALF-LENGTH PORTION PLATED WITH A SECOND METAL WHEREBY A FIRST AND SECOND SERIES OF OPPOSITELY POLARIZED THERMAL JUNCTIONS ARE FORMED, SAID HELICAL CONDUCTOR BEING COILED ABOUT THE SURFACE OF SAID REACTION VESSEL SUCH THAT SAID FIRST SERIES OF THERMAL JUNCTIONS SENSES THE TEMPERATURE OF SAID VESSEL AT A MULTIPLICITY OF POINTS, MEANS FOR MAINTAINING SAID SECOND SERIES OF THERMAL JUNCTIONS AT A SUBSTANTIALLY CONSTANT TEMPERATURE, SAID MEANS FOR MAINTAINING SAID SECOND SECOND SERIES OF THERMAL JUNCTIONS AT A SUBSTANTIALLY CONSTANT TEMPERATURE INCLUDING A HOLLOW METALLIC CYLINDRICAL HEAT SINK, SAID SECOND SERIES OF THERMAL JUNCTIONS BEING IN THERMAL CONTACT WITH THE INNER WALL OF SAID HEAT SINK.
Claim 2
Dependent Claim
133 words
FOR THE USE IN A HEAT-BURST MICROCALORIMETER, THE SUBCOMBINATION OF A REACTION VESSEL, A HELICAL CONDUCTOR MADE OF A FIRST METAL, EACH TURN THEREOF HAVING A CORRESPONDING HALF-LENGTH PORTION PLATED WITH A SECOND METAL WHEREBY A FIRST AND SECOND SERIES OF OPPOSITELY POLARIZED THERMAL JUNCTIONS ARE FORMED, SAID HELICAL CONDUCTOR BEING COILED ABOUT THE SURFACE OF SAID REACTION VESSEL SUCH THAT SAID FIRST SERIES OF THERMAL JUNCTIONS SENSES THE TEMPERATURE OF SAID VESSEL AT A MULTIPLICITY OF POINTS, MEANS FOR MAINTAINING SAID SECOND SERIES OF THERMAL JUNCTIONS AT A SUBSTANTIALLY CONSTANT TEMPERATURE, SAID MEANS FOR MAINTAINING SAID SECOND SECOND SERIES OF THERMAL JUNCTIONS AT A SUBSTANTIALLY CONSTANT TEMPERATURE INCLUDING A HOLLOW METALLIC CYLINDRICAL HEAT SINK, SAID SECOND SERIES OF THERMAL JUNCTIONS BEING IN THERMAL CONTACT WITH THE INNER WALL OF SAID HEAT SINK.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-09-19 | 1970-03-21 | 1970-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-19 | 1974-03-21 | 1974-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-19 | 1978-03-21 | 1978-09-20 | $7700.00 | Window Closed / Lapsed |