Patent US3239651A successfully refreshed from Google Patents.
US3239651A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heating unit
Assignee: Ekco Products Co
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Filing: 1963-08-21
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Granted: 1966-03-08
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Expires: 1983-08-21
Abstract
No abstract record available.
Inventors
- 👤 Robert L Silberman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 10:27
CPC Classifications
A; A21; A21B; A21B3/00; A21B2/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
197 words
AN OVEN FOR USE IN CONDITIONING BAKING PANS FOR ENTRY TO DOUGH PROOFING ATMOSPHERES WHILE SAID PANS ARE UNDERGOING CONVEYANCE TO SAID ATMOSPHERE, SAID OVEN HAVING AN OUTER HOUSING DEFINED BY A PAIR OF DUPLICATE UPRIGHT SIDE WALLS ARRANGED IN STRADDLING RELATION TO THE PATH TRAVELLED BY SAID PANS AND A HOOD SPANNING THE AREA BETWEEN SAID SIDE WALLS IN OVERHEAD RELATION TO SAID PATH OF SAID PANS, HIGH TEMPERATURE ELECTRIC HEATING ELEMENTS IN FIXED DOWNWARDLY SPACED RELATION TO SAID HOOD, MEANS FOR DIRECTING THE HEAT PRODUCED BY SAID HEATING ELEMENTS TOWARD THE PATH OF SAID PANS INCLUDING AN INNER REFLECTOR HOUSING HAVING UPRIGHT SIDE PANELS FIXED IN INWARDLY SPACED RELATION TO SAID SIDE WALLS OF THE OUTER HOUSING AND A CLOSURE SPANNING THE AREA BETWEEN SAID SIDE PANELS OF THE REFLECTOR HOUSING IN DOWNWARDLY SPACED RELATION TO SAID HOOD OF THE OUTER HOUSING, A CONTINUOUS PASSAGEWAY BETWEEN THE AREA ABOVE SAID CLOSURE OF THE INNER REFLECTOR HOUSING AND THE AREA ALONG THE OUTER SURFACES OF THE SIDE PANELS OF THE INNER REFLECTOR HOUSING, AN AIR DUCT IN SAID HOOD OF THE OUTER HOUSING AND AIR MOVING MEANS FOR ESTABLISHING A DOWNWARDLY DIRECTED FLOW OF AIR THROUGH
Claim 2
Dependent Claim
197 words
AN OVEN FOR USE IN CONDITIONING BAKING PANS FOR ENTRY TO DOUGH PROOFING ATMOSPHERES WHILE SAID PANS ARE UNDERGOING CONVEYANCE TO SAID ATMOSPHERE, SAID OVEN HAVING AN OUTER HOUSING DEFINED BY A PAIR OF DUPLICATE UPRIGHT SIDE WALLS ARRANGED IN STRADDLING RELATION TO THE PATH TRAVELLED BY SAID PANS AND A HOOD SPANNING THE AREA BETWEEN SAID SIDE WALLS IN OVERHEAD RELATION TO SAID PATH OF SAID PANS, HIGH TEMPERATURE ELECTRIC HEATING ELEMENTS IN FIXED DOWNWARDLY SPACED RELATION TO SAID HOOD, MEANS FOR DIRECTING THE HEAT PRODUCED BY SAID HEATING ELEMENTS TOWARD THE PATH OF SAID PANS INCLUDING AN INNER REFLECTOR HOUSING HAVING UPRIGHT SIDE PANELS FIXED IN INWARDLY SPACED RELATION TO SAID SIDE WALLS OF THE OUTER HOUSING AND A CLOSURE SPANNING THE AREA BETWEEN SAID SIDE PANELS OF THE REFLECTOR HOUSING IN DOWNWARDLY SPACED RELATION TO SAID HOOD OF THE OUTER HOUSING, A CONTINUOUS PASSAGEWAY BETWEEN THE AREA ABOVE SAID CLOSURE OF THE INNER REFLECTOR HOUSING AND THE AREA ALONG THE OUTER SURFACES OF THE SIDE PANELS OF THE INNER REFLECTOR HOUSING, AN AIR DUCT IN SAID HOOD OF THE OUTER HOUSING AND AIR MOVING MEANS FOR ESTABLISHING A DOWNWARDLY DIRECTED FLOW OF AIR THROUGH
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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) | 1969-03-07 | 1969-09-06 | 1970-03-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-07 | 1973-09-06 | 1974-03-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-07 | 1977-09-06 | 1978-03-08 | $7700.00 | Window Closed / Lapsed |