Patent US3168642A successfully refreshed from Google Patents.
US3168642A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrically heated forced air circulation oven
Assignee: Market Forge Co
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Filing: 1963-01-24
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Granted: 1965-02-02
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Expires: 1983-01-24
Abstract
No abstract record available.
Inventors
- 👤 Savio Joseph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:14
CPC Classifications
F; F24; F24C; F24C7/00; F24C15/00; F24C15/32; F24C15/322; F24C15/325
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
143 words
IN A ELECTRIC OVEN OF THE TYPE DESCRIBED, A CHAMBER HAVING A REAR WALL AND A PERIPHERAL SIDE WALL, A BAFFLE PLATE IN SAID CHAMBER ADJACENT AND PARALLEL TO SAID REAR WALL AND SPACED FROM SAID PERIPHERAL WALL AND HAVING A RELATIVELY LARGE CENTRAL OPENING, A BLOWER BEHIND SAID BAFFLE OPERATIVE TO CAUSE AIR TO FLOW REARWARDLY THROUGH SAID CENTRAL OPENING AND TO COUNTERFLOW AROUND SAID BAFFLE PLATE AND FORWARDLY, MEANS RELEASABLY SUPORTING RACKS IN SAID CHAMBER IN HORIZONTAL SPACED RELATION WITH EACH RACK EXTENDING ACROSS SAID CHAMBER, EACH RACK ADAPTED TO RECEIVE FOOD THEREON FOR COOKING, AT LEAST ONE RACK POSITIONED FOR FOOD THEREON TO OPPOSE AND BE ALIGNED WITH SAID CENTRAL OPENING, AND A HORIZONTAL BAR ON SAID BAFFLE ACROSS SAID CENTRAL OPENING AND OPPOSING SAID FOOD, SAID BAR SIZE AND SHAPED TO BLOCK AND REDUCE AIR FLOW OVER SAID FOOD.
Claim 2
Dependent Claim
143 words
IN A ELECTRIC OVEN OF THE TYPE DESCRIBED, A CHAMBER HAVING A REAR WALL AND A PERIPHERAL SIDE WALL, A BAFFLE PLATE IN SAID CHAMBER ADJACENT AND PARALLEL TO SAID REAR WALL AND SPACED FROM SAID PERIPHERAL WALL AND HAVING A RELATIVELY LARGE CENTRAL OPENING, A BLOWER BEHIND SAID BAFFLE OPERATIVE TO CAUSE AIR TO FLOW REARWARDLY THROUGH SAID CENTRAL OPENING AND TO COUNTERFLOW AROUND SAID BAFFLE PLATE AND FORWARDLY, MEANS RELEASABLY SUPORTING RACKS IN SAID CHAMBER IN HORIZONTAL SPACED RELATION WITH EACH RACK EXTENDING ACROSS SAID CHAMBER, EACH RACK ADAPTED TO RECEIVE FOOD THEREON FOR COOKING, AT LEAST ONE RACK POSITIONED FOR FOOD THEREON TO OPPOSE AND BE ALIGNED WITH SAID CENTRAL OPENING, AND A HORIZONTAL BAR ON SAID BAFFLE ACROSS SAID CENTRAL OPENING AND OPPOSING SAID FOOD, SAID BAR SIZE AND SHAPED TO BLOCK AND REDUCE AIR FLOW OVER SAID FOOD.
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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) | 1968-02-02 | 1968-08-03 | 1969-02-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-02-02 | 1972-08-03 | 1973-02-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-02-02 | 1976-08-03 | 1977-02-02 | $7700.00 | Window Closed / Lapsed |