US3256003A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable oil heater
Assignee: Koehring Co
•
Filing: 1963-10-17
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Granted: 1966-06-14
•
Expires: 1983-10-17
Abstract
No abstract record available.
Inventors
- 👤 Eugene C Briggs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 14:51
CPC Classifications
F; F23; F23C; F23C99/00; F24; F24H; F24H3/00; F24H3/02; F24H3/04; F24H3/0488; F24H9/00; F24H9/18; F24H9/1854; F24H9/1877; F24H9/1881; F23C2700/00; F23C2700/02; F23C2700/023; Y; Y02; Y02B; Y02B30/00
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
109 words
A SPACE HEATER INCLUDING A FUEL TANK HAVING SUPERPOSED THEREON IN FIXED RELATION THERETO A BURNER UNIT AND MEANS DEFINING A COMBUSTION CHAMBER WHICH ACCOMMODATES ONE OF THE BURNER UNIT, CHARACTERIZED BY A CARRYING FRAME INCLUDING AN INVERTED U-SHAPED ELEMENT FIXED LONGITUDINALLY OF EITHER SIDE OF SAID TANK TO HAVE THE LEG PORTIONS THEREOF DEPEND AND PROVIDE AN ELEVATED SUPPORT OF SAID TANK AND A BASKET TYPE HANDLE TRANSVERSE TO AND INTERCONNECTING THE BRIDGING PORTIONS OF SAID USHAPED ELEMENTS, SAID HANDLE BEING SO DISPOSED TO BRIDGE SAID BURNER UNIT AND COMBUSTION CHAMBER IN AN ELEVATED SPACED RELATION THERETO WHEREBY TO FACILITATE THE POSITIONING AND TRANSPORT OF THE SHAPE HEATER.
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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) | 1969-06-13 | 1969-12-13 | 1970-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-06-13 | 1973-12-13 | 1974-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-06-13 | 1977-12-13 | 1978-06-14 | $7700.00 | Window Closed / Lapsed |