US3096754A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Furnace fireplace
Assignee: Individual
•
Filing: 1960-02-24
•
Granted: 1963-07-09
•
Expires: 1980-02-24
Abstract
No abstract record available.
Inventors
- 👤 Mildred L Solomon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:46
CPC Classifications
F; F24; F24B; F24B1/00; F24B1/18; F24B1/1802; F24B1/185; F24B1/188; F24B1/1885
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
119 words
A FIREPLACE COMPRISING MEANS FOR BURNING FUEL IN FLUID FORM, MEANS FOR BURNING FUEL IN SOLID FORM, DAMPER MEANS IN SAID FIREPLACE, A DUAL CONTROL THERMOSTAT UNIT HAVING A PAIR OF THERMOSTATIC ELEMENTS, MEANS FOR SETTING BOTH OF SAID THERMOSTATIC ELEMENTS FOR OPERATION TOGETHER TO PRESET SAID DAMPER FOR MOVEMENT WHICH WILL ACHIEVE A DESIRED TEMPERATURE RANGE WHEN LIQUID FUEL IS BURNED, SAID PAIR OF THERMOSTATIC ELEMENTS WHEN SET AS A UNIT PROVIDING A GREATER SENSITIVITY IN OPERATION THAN WHEN SET SINGLY, AND MEANS FOR DISENGAGING ONE OF SAID THERMOSTATIC ELEMENTS FOR OPERATION SINGLY OF THE OTHER OF SAID THERMOSTATIC ELEMENTS TO PRESET SAID DAMPER FOR MOVEMENT WHICH WILL ACHIEVE A DESIRED TEMPERATURE RANGE WHEN SOLID FUEL IS BURNED.
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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) | 1966-07-08 | 1967-01-07 | 1967-07-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-07-08 | 1971-01-07 | 1971-07-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-07-08 | 1975-01-07 | 1975-07-09 | $7700.00 | Window Closed / Lapsed |