Patent US3109420A successfully refreshed from Google Patents.
US3109420A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable knockdown stove
Assignee: Individual
•
Filing: 1958-12-17
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Granted: 1963-11-05
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Expires: 1978-12-17
Abstract
No abstract record available.
Inventors
- 👤 Robert H Ott
- 👤 Koontz Ray
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:47
CPC Classifications
F; F24; F24C; F24C1/00; F24C1/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
142 words
IN A PORTABLE KNOCKDOWN STOVE, FOUR PLATE-LIKE SIDE PANELS OF THE SAME SHAPE AND EACH HAVING TWO VERTICAL SIDE EDGES, A TOP EDGE, A BOTTOM EDGE, UPPER AND LOWER EARS EXTENDING OUTWARDLY FROM EACH SIDE EDGE, THE EARS ON ONE SIDE EDGE OF EACH PANEL BEING FORMED WITH OPEN TOP DOWNWARDLY EXTENDING SLOTS AND THE EARS ON THE OTHER SIDE EDGE OF EACH PANEL BEING FORMED WITH OPEN BOTTOM UPWARDLY EXTENDING SLOTS, THE OPEN TOP DOWNWARDLY EXTENDING SLOT EARS ON ONE PANEL AT EACH CORNER OF THE STOVE BEING DETACHABLY INTERLOCKED WITH THE OPEN BOTTOM UPWARDLY EXTENDING SLOT EARS OF THE ADJACENT PANEL, EACH SIDE PANEL HAVING A DOWNWARDLY EXTENDING LEG TAB ADJACENT SAID ONE SIDE EDGE THEREOF, THE REMAINING BOTTOM EDGE PORTIONS OF SAID SIDE PANELS BEING FREE FROM ANY DOWNWARD PROJECTION; AND A STOVE BOTTOM DETACHABLY CONNECTED TO SAID PANELS.
Claim 2
Dependent Claim
142 words
IN A PORTABLE KNOCKDOWN STOVE, FOUR PLATE-LIKE SIDE PANELS OF THE SAME SHAPE AND EACH HAVING TWO VERTICAL SIDE EDGES, A TOP EDGE, A BOTTOM EDGE, UPPER AND LOWER EARS EXTENDING OUTWARDLY FROM EACH SIDE EDGE, THE EARS ON ONE SIDE EDGE OF EACH PANEL BEING FORMED WITH OPEN TOP DOWNWARDLY EXTENDING SLOTS AND THE EARS ON THE OTHER SIDE EDGE OF EACH PANEL BEING FORMED WITH OPEN BOTTOM UPWARDLY EXTENDING SLOTS, THE OPEN TOP DOWNWARDLY EXTENDING SLOT EARS ON ONE PANEL AT EACH CORNER OF THE STOVE BEING DETACHABLY INTERLOCKED WITH THE OPEN BOTTOM UPWARDLY EXTENDING SLOT EARS OF THE ADJACENT PANEL, EACH SIDE PANEL HAVING A DOWNWARDLY EXTENDING LEG TAB ADJACENT SAID ONE SIDE EDGE THEREOF, THE REMAINING BOTTOM EDGE PORTIONS OF SAID SIDE PANELS BEING FREE FROM ANY DOWNWARD PROJECTION; AND A STOVE BOTTOM DETACHABLY CONNECTED TO SAID PANELS.
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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) | 1966-11-04 | 1967-05-06 | 1967-11-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-11-04 | 1971-05-06 | 1971-11-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-11-04 | 1975-05-06 | 1975-11-05 | $7700.00 | Window Closed / Lapsed |