Patent US2343494A successfully refreshed from Google Patents.
Patent US3275309A successfully refreshed from Google Patents.
US3275309A
Expired / Lapsed
US
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Apparatus for heating metal objects
Assignee: Lee Wilson Engineering Co Inc
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Filing: 1964-04-08
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Granted: 1966-09-27
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Expires: 1984-04-08
Abstract
No abstract record available.
Inventors
- 👤 Wilson Lee
- 👤 Paul R Barenok
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 05:40
CPC Classifications
C; C21; C21D; C21D1/00; C21D1/74; C21D1/767
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
143 words
APPARATUS FOR HEATING METAL OBJECTS INCLUDING A BASE, A CHARGE SUPPORT ON SAID BASE, A FURNACE BELT ON SAID BASE FORMING AN ENCLOSED FURNACE CHAMBER THEREWITH, SAID FURNACE BELL HAVING A TOP OPENING, SAID BASE HAVING A BOTTOM OPENING AND SAID CHARGE SUPPORT BEING ADAPTED TO SUPPORT A CHARGE IN SAID FURNACE CHAMBER, ATMOSPHERE CIRCULATING MEANS CONNECTING SAID BOTTOM OPENING IN SAID BASE AND SAID TOP OPENING IN SAID FURNACE BELL, HEATING MEANS SUPPORTED IN SAID FURNACE BELL AND EXTENDING TRANSVERSELY THEREOF, SAID HEATING MEANS HAVING A RADIANT HEATING SURFACE AREA DISPOSED FOR DIRECT RADIANT HEATING OF A CHARGE ON SAID CHARGE SUPPORT, AND ATMOSPHERE DIFFUSION MEANS COMPRISING A PLURALITY OF INWARDLY EXTENDING INCLINED VANES HAVING THEIR ADJACENT LONGITUDINAL EDGES SPACED APART AND BEING SUPPORTED BY SAID FURNACE BELL ABOVE SAID HEATING MEANS ON THE SIDE THEREOF OPPOSITE SAID RADIANT HEATING SURFACE AREA.
Claim 2
Dependent Claim
143 words
APPARATUS FOR HEATING METAL OBJECTS INCLUDING A BASE, A CHARGE SUPPORT ON SAID BASE, A FURNACE BELT ON SAID BASE FORMING AN ENCLOSED FURNACE CHAMBER THEREWITH, SAID FURNACE BELL HAVING A TOP OPENING, SAID BASE HAVING A BOTTOM OPENING AND SAID CHARGE SUPPORT BEING ADAPTED TO SUPPORT A CHARGE IN SAID FURNACE CHAMBER, ATMOSPHERE CIRCULATING MEANS CONNECTING SAID BOTTOM OPENING IN SAID BASE AND SAID TOP OPENING IN SAID FURNACE BELL, HEATING MEANS SUPPORTED IN SAID FURNACE BELL AND EXTENDING TRANSVERSELY THEREOF, SAID HEATING MEANS HAVING A RADIANT HEATING SURFACE AREA DISPOSED FOR DIRECT RADIANT HEATING OF A CHARGE ON SAID CHARGE SUPPORT, AND ATMOSPHERE DIFFUSION MEANS COMPRISING A PLURALITY OF INWARDLY EXTENDING INCLINED VANES HAVING THEIR ADJACENT LONGITUDINAL EDGES SPACED APART AND BEING SUPPORTED BY SAID FURNACE BELL ABOVE SAID HEATING MEANS ON THE SIDE THEREOF OPPOSITE SAID RADIANT HEATING SURFACE AREA.
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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) | 1969-09-26 | 1970-03-28 | 1970-09-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-26 | 1974-03-28 | 1974-09-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-26 | 1978-03-28 | 1978-09-27 | $7700.00 | Window Closed / Lapsed |