Patent EP0490539A2 successfully refreshed from Google Patents.
US3843336A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Artificial fireplace log
Assignee: Kingsford Co
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Filing: 1972-08-31
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Granted: 1974-10-22
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Expires: 1992-08-31
Abstract
Abstract SAID SKELETION BEING FILLED WITH PARTICULATE WOODY MATERIALS AND SAID LOG HAVING A PRESELECTED QUANTITY OF AT LEAST ONE PETROLEUM DERIVATIVE HYDROCARBON ABSORBED THEREIN. 1. A COMBUSTIBLE ARTIFICAL FIREPLACE LOG COMPRISING: AN EXTRUDED, HIGHLY FILLED, THERMOSETTING RESIN SKELETON FORMING A MORE CONCENTRATED OUTER SURFACE SURROUNDING A POROUS LESS CONCENTRATED INTERIOR MATRIX OF SAID RESIN;
Inventors
- 👤 H Messman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 21:13
CPC Classifications
C; C10; C10L; C10L5/00; C10L5/40; Y; Y02; Y02E; Y02E50/00; Y02E50/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
29 words
A COMBUSTIBLE ARTIFICAL FIREPLACE LOG COMPRISING: AN EXTRUDED, HIGHLY FILLED, THERMOSETTING RESIN SKELETON FORMING A MORE CONCENTRATED OUTER SURFACE SURROUNDING A POROUS LESS CONCENTRATED INTERIOR MATRIX OF SAID RESIN;
Claim 2
Dependent Claim
29 words
A COMBUSTIBLE ARTIFICAL FIREPLACE LOG COMPRISING: AN EXTRUDED, HIGHLY FILLED, THERMOSETTING RESIN SKELETON FORMING A MORE CONCENTRATED OUTER SURFACE SURROUNDING A POROUS LESS CONCENTRATED INTERIOR MATRIX OF SAID RESIN;
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-10-21 | 1978-04-22 | 1978-10-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-10-21 | 1982-04-22 | 1982-10-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-10-21 | 1986-04-22 | 1986-10-22 | $7700.00 | Window Closed / Lapsed |