Patent US3073296A successfully refreshed from Google Patents.
US3073296A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Furnaces
Assignee: Siegler Corp
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Filing: 1958-06-26
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Granted: 1963-01-15
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Expires: 1978-06-26
Abstract
No abstract record available.
Inventors
- 👤 John H Hollingsworth
- 👤 Block Leo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 09:38
CPC Classifications
F; F24; F24H; F24H3/00; F24H3/02; F24H3/06; F24H3/10; F24H3/105
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
151 words
IN A FORCED AIR HEATER, THE COMBINATION WHICH COMPRISES A CASING HAVING A NARROW FRONT WALL AND A NARROW BACK WALL AND TWO WIDE SIDE WALLS, A PARTITION DISPOSED IN THE CASING TRANSVERSE TO THE BACK AND SIDE WALLS DIVIDING THE CASING INTO A RADIATOR COMPARTMENT AND A BLOWER COMPARTMENT, A PLURALITY OF HOLLOW SLAB-LIKE RADIATORS DISPOSED SIDE-BY-SIDE IN THE RADIATOR COMPARTMENT AND SPACED FROM EACH OTHER AND FROM THE SIDE WALLS OF THE CASING, THE FRONT AND REAR WALLS OF THE RADIATORS BEING HIGH AND NARROW AND THE SIDE WALLS OF THE RADIATORS BEING PARALLEL TO THE CASING WALL AND EXTENDING SUBSTANTIALLY FROM THE FRONT WALL OF THE CASING TO THE REAR WALL OF THE CASING, AN INTERIOR PARTITION DISPOSED IN THE RADIATOR COMPARTMENT BETWEEN ONE SIDE WALL AND THE RADIATOR NEAREST THAT SIDE WALL AND SPACED FROM BOTH THAT SIDE WALL AND THAT RADIATOR WHILE EXTENDING SUBSTANTIALLY PARALLEL TO
Claim 2
Dependent Claim
151 words
IN A FORCED AIR HEATER, THE COMBINATION WHICH COMPRISES A CASING HAVING A NARROW FRONT WALL AND A NARROW BACK WALL AND TWO WIDE SIDE WALLS, A PARTITION DISPOSED IN THE CASING TRANSVERSE TO THE BACK AND SIDE WALLS DIVIDING THE CASING INTO A RADIATOR COMPARTMENT AND A BLOWER COMPARTMENT, A PLURALITY OF HOLLOW SLAB-LIKE RADIATORS DISPOSED SIDE-BY-SIDE IN THE RADIATOR COMPARTMENT AND SPACED FROM EACH OTHER AND FROM THE SIDE WALLS OF THE CASING, THE FRONT AND REAR WALLS OF THE RADIATORS BEING HIGH AND NARROW AND THE SIDE WALLS OF THE RADIATORS BEING PARALLEL TO THE CASING WALL AND EXTENDING SUBSTANTIALLY FROM THE FRONT WALL OF THE CASING TO THE REAR WALL OF THE CASING, AN INTERIOR PARTITION DISPOSED IN THE RADIATOR COMPARTMENT BETWEEN ONE SIDE WALL AND THE RADIATOR NEAREST THAT SIDE WALL AND SPACED FROM BOTH THAT SIDE WALL AND THAT RADIATOR WHILE EXTENDING SUBSTANTIALLY PARALLEL TO
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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) | 1966-01-14 | 1966-07-16 | 1967-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-14 | 1970-07-16 | 1971-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-14 | 1974-07-16 | 1975-01-15 | $7700.00 | Window Closed / Lapsed |