US3240206A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fireplace grate
Assignee: Individual
•
Filing: 1965-03-09
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Granted: 1966-03-15
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Expires: 1985-03-09
Abstract
No abstract record available.
Inventors
- 👤 Keith M Schutt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 14:35
CPC Classifications
F; F24; F24B; F24B1/00; F24B1/18; F24B1/191; F24B1/193; F23; F23Q; F23Q13/00; F23Q13/02; F24B1/185; F24B1/188; F24B1/1885; F24B1/1886
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
111 words
A FORCED AIR HEATING FIREPLACE GRATE COMPRISING: A PLURALITY OF SPACED, PARALLEL, RIGID, HOLLOW, HEAT TRANSFER, CONDUIT PIPES EXTENDING FROM FRONT TO REAR OF THE GRATE AND SPACED COMPLETELY ACROSS THE WIDTH THEREOF, FORMING THE WOOD SUPPORT BED SURFACE OF THE GRATE AND HAVING OPEN FRONT ENDS FOR OUTLET PORTS; A HOLLOW, AIR MANIFOLD EXTENDING TRANSVERSELY OF SAID PLURALITY OF PIPES AT THE REAR THEREOF AND CONNECTED TO AND COMMUNICANT WITH SAID PIPES TO SUPPLY ALL OF SAID PIPES WITH COOL AIR; A COOL AIR SUPPLY CONDUIT CONNECTED TO SAID MANIFOLD, AN A BLOWING ON SAID COOL AIR SUPPLY CONDUIT; AND DOWNWARDLY DEPENDING LEGS AT THE FRONT BACK OF SAID GRATE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-03-14 | 1969-09-13 | 1970-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-14 | 1973-09-13 | 1974-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-14 | 1977-09-13 | 1978-03-15 | $7700.00 | Window Closed / Lapsed |