US2760920A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Solar energy coking apparatus
Assignee: Individual
•
Filing: 1952-06-06
•
Granted: 1956-08-28
•
Expires: 1972-06-06
Abstract
No abstract record available.
Inventors
- 👤 Robert B Olsen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:19
CPC Classifications
C; C10; C10B; C10B23/00; F; F24; F24S; F24S23/00; F24S23/70; F24S23/71; F24S30/00; F24S30/40; F24S30/45; F24S30/452; F24S2030/10; F24S2030/13; F24S2030/134; F24S2030/14; F24S2030/145; Y; Y02; Y02E; Y02E10/00; Y02E10/40; Y02E10/47; Y02P; Y02P20/00; Y02P20/10; Y02P20/133; Y10; Y10S; Y10S159/00; Y10S159/902; Y10S159/903; Y10S48/00; Y10S48/09
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
118 words
A SUN FURNACE COMPRISING A REFLECTOR INCLUDING A PLURALITY OF RECTANGULAR FLAT MIRRORS ARRANGED IN PARABOLIC FORM, A STANDARD RISING ABOVE SAID REFLECTOR, A FURNACE CARRIED BY SAID STANDARD AND MOUNTED AT THE FOCUS OF SAID REFLECTOR, SAID FURNACE HAVING A HEAT ABSORBING SURFACE EXPOSED TO SAID REFLECTOR AND AN INSULATING SURFACE ON THAT PART OF THE FURNACE AWAY FROM SAID REFLECTOR, THE ABSORBING SURFACE OF SAID FURNACE BEING IN THE FORM OF A PARABOLA THAT IS SUBSTANTIALLY PARALLEL TO SAID REFLECTOR, AN INLET TUBE, AN OUTLET TUBE, BOTH SAID TUBES BEING CON NECTED TO SAID FURNACE AND EXTENDING THROUGH SAID STANDARD, AND A SPIRAL CONVEYOR IN SAID INLET TUBE FOR CHARGING SAID FURNACE THROUGH SAID INLET TUBE.
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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) | 1959-08-28 | 1960-02-27 | 1960-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-08-28 | 1964-02-27 | 1964-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-08-28 | 1968-02-27 | 1968-08-28 | $7700.00 | Window Closed / Lapsed |