Patent US3167642A successfully refreshed from Google Patents.
US3167642A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable electric oven
Assignee: Individual
•
Filing: 1961-07-27
•
Granted: 1965-01-26
•
Expires: 1981-07-27
Abstract
No abstract record available.
Inventors
- 👤 Charles S Reis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:29
CPC Classifications
F; F24; F24C; F24C7/00; F24C7/04; F24C7/046; F24C7/10
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
135 words
AN OVEN COMPRISING A BASE, VERTICAL SUPPORT SHAFT OF THERMAL CONDUCTIVE MATERIAL EXTENDING UPWARDLY FROM SAID BASE, INNER AND OUTER INSULATED HEMISPHERES, EACH SAID HEMISPHERE INCLUDING INNER AND OUTER SPACED HEMISPHERICAL SHELLS SUPPORTED IN SPACED RELATIONSHIP BY A RING, INSULATION DISPOSED BETWEEN THE SPACED HEMISPHERICAL SHELLS FORMING EACH OF SAID INNER AND OUTER INSULATED HEMISPHERES, THE RING OF THE INNER HEMISPHERE BEING FIXEDLY MOUNTED ON THE SUPPORT SHAFT, SAID SHAFT BEING EXPOSED TO THE INTERIOR OF SAID INNER HEMISPHERE, AND THE RING OF THE OUTER HEMISPHERE BEING ROTATABLY MOUNTED ON THE SUPPORT SHAFT, A SUPPORT SLEEVE CARRIED BY THE BASE AND SERVING TO ROTATABLY SUPPORT THE OUTER HEMISPHERE WHEREBY THE OUTER HEMISPHERE MAY BE ROTATED TO OPEN AND CLOSE THE OVEN, HEATING MEANS SUPPORTED WITHIN THE OVEN FOR HEATING ARTICLES PLACED THEREIN, AND A THERMO-
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-01-26 | 1968-07-27 | 1969-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-01-26 | 1972-07-27 | 1973-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-01-26 | 1976-07-27 | 1977-01-26 | $7700.00 | Window Closed / Lapsed |