US3189727A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric space heater
Assignee: Sunbeam Corp
•
Filing: 1961-06-27
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Granted: 1965-06-15
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Expires: 1981-06-27
Abstract
No abstract record available.
Inventors
- 👤 Jepson Ivar
- 👤 James R Cochrane
- 👤 Robert D Grahn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:37
CPC Classifications
F; F24; F24H; F24H3/00; F24H3/02; F24H3/04; F24H3/0405; F24H3/0411; F24H3/0417
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
109 words
A PORTABLE ELECTRIC HEATER COMPRISING AN OPEN FRONT HOUSING INCLUDING A PAIR OF SPACED END WALLS, A REFLECTOR ASSEMBLY IN SAID HOUSING FOR REFLECTING RADIANT ENERGY THROUGH SAID OPEN FRONT, AIR PASSAGE MEANS THROUGH SAID HOUSING INCLUDING OPENINGS IN SAID REFLECTOR ASSEMBLY FOR CONVECTION HEATING, SAID REFLECTOR ASSEMBLY INCLUDING A PAIR OF SPACED END PORTIONS, EACH OF THE SAID END PORTIONS BEING CLOSELY POSITIONED TO A RESPECTIVE ONE OF SAID END WALLS, MEANS DEFINING AN OPENING IN EACH OF SAID END PORTIONS, A PAIR OF INSULATING SUPPORT MEANS ONE DISPOSED IN EACH OF SAID OPENINGS, A PAIR OF SPRING MEANS ONE FOR EACH OF SAID END PORTIONS, EACH SPRING
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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) | 1968-06-14 | 1968-12-14 | 1969-06-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-06-14 | 1972-12-14 | 1973-06-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-06-14 | 1976-12-14 | 1977-06-15 | $7700.00 | Window Closed / Lapsed |