Patent US933577A successfully refreshed from Google Patents.
Patent US3213684A successfully refreshed from Google Patents.
US3213684A
Expired / Lapsed
US
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Calorimeter
Assignee: Swiss Colony Inc
•
Filing: 1962-11-27
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Granted: 1965-10-26
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Expires: 1982-11-27
Abstract
No abstract record available.
Inventors
- 👤 Clarence A Seaton
- 👤 Otto A Uyehara
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:19
CPC Classifications
G; G01; G01N; G01N25/00; G01N25/20; G01N25/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
133 words
IN A GAS COMPARISON CALORIMETER, THE COMBINATION INCLUDING MEANS FOR SUPPLYING A PREDETERMINED VOLUME OF GAS PER UNIT TIME TO A BURNER, MEANS FOR SUPPLYING A PREDETERMINED VOLUME OF AIR PER UNIT TIME TO A BURNER, BURNER MEANS FOR BURNING SAID GAS, SAID BURNER MEANS RECEIVING SAID GAS AND AIR, HEAT SINK MEANS HAVING A SURFACE AREA EXPOSED TO THE PRODUCTS OF COMBUSTION OF SAID BURNER MEANS, BOILER MEANS CONDUCTIVELY CONNECTED TO SAID SURFACE AREA, SAID BOILER HAVING A LIQUID THEREIN, CONDENSER MEANS CONNECTED TO SAID BOILER MEANS FOR RETURNING CONDENSED LIQUID THERETO, SO THAT SAID BOILER MEANS MAINTAINS ONE END OF SAID HEAT SINK MEANS AT SUBSTANTIALLY CONSTANT TEMPERATURE, TEMPERATURE RESPONSIVE MEANS IN THE PATH OF HEAT FLOW FROM SAID SURFACE AREA AND SAID BOILER MEANS, AND INDICATING MEANS CONNECTED TO SAID
Claim 2
Dependent Claim
133 words
IN A GAS COMPARISON CALORIMETER, THE COMBINATION INCLUDING MEANS FOR SUPPLYING A PREDETERMINED VOLUME OF GAS PER UNIT TIME TO A BURNER, MEANS FOR SUPPLYING A PREDETERMINED VOLUME OF AIR PER UNIT TIME TO A BURNER, BURNER MEANS FOR BURNING SAID GAS, SAID BURNER MEANS RECEIVING SAID GAS AND AIR, HEAT SINK MEANS HAVING A SURFACE AREA EXPOSED TO THE PRODUCTS OF COMBUSTION OF SAID BURNER MEANS, BOILER MEANS CONDUCTIVELY CONNECTED TO SAID SURFACE AREA, SAID BOILER HAVING A LIQUID THEREIN, CONDENSER MEANS CONNECTED TO SAID BOILER MEANS FOR RETURNING CONDENSED LIQUID THERETO, SO THAT SAID BOILER MEANS MAINTAINS ONE END OF SAID HEAT SINK MEANS AT SUBSTANTIALLY CONSTANT TEMPERATURE, TEMPERATURE RESPONSIVE MEANS IN THE PATH OF HEAT FLOW FROM SAID SURFACE AREA AND SAID BOILER MEANS, AND INDICATING MEANS CONNECTED TO SAID
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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) | 1968-10-25 | 1969-04-26 | 1969-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-25 | 1973-04-26 | 1973-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-25 | 1977-04-26 | 1977-10-26 | $7700.00 | Window Closed / Lapsed |