US3277273A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric radiant heating panel
Assignee: Individual
•
Filing: 1964-05-11
•
Granted: 1966-10-04
•
Expires: 1984-05-11
Abstract
No abstract record available.
Inventors
- 👤 Harry H Williams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:46
CPC Classifications
F; F24; F24D; F24D13/00; F24D13/02; F24D13/022; Y; Y02; Y02B; Y02B30/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
114 words
A RADIANT HEATING PANEL FOR APPLICATION TO BUILDING FRAME-WORK, COMPRISING A SHEET OF FIRE RESISTANT MATERIAL HAVING SUBSTANTIALLY PLANE FRONT AND REAR FACES AND PROVIDED IN ITS REAR FACE WITH A SERPENTINE GROOVE HAVING OPPOSED SIDE WALLS, AND AN ELECTRICAL RESISTANCE WIRE PROVIDED WITH A FLEXIBLE, COMPRESSIBLE ELECTRICALLY-RESISTIVE COVERING SEATED IN SAID GROOVE, THE WIDTH OF THE GROOVE BEING LESS THAN THE WIDTH OF THE COVERING, WHEREBY THE COVERING WILL BE COMPRESSED BETWEEN THE OPPOSED SIDE WALLS OF THE GROOVE AND IN INTIMATE, HEAT-TRANSFERRING CONTACT WITH THE SIDE WALLS AND BOTTOM OF THE GROOVE, SAID COVERING SUBSTANTIALLY FILLING THE GROOVE AND HAVING AN OUTER FACE SUBSTANTIALLY COPLANAR WITH THE REAR FACE OF SAID SHEET.
Claim 2
Dependent Claim
114 words
A RADIANT HEATING PANEL FOR APPLICATION TO BUILDING FRAME-WORK, COMPRISING A SHEET OF FIRE RESISTANT MATERIAL HAVING SUBSTANTIALLY PLANE FRONT AND REAR FACES AND PROVIDED IN ITS REAR FACE WITH A SERPENTINE GROOVE HAVING OPPOSED SIDE WALLS, AND AN ELECTRICAL RESISTANCE WIRE PROVIDED WITH A FLEXIBLE, COMPRESSIBLE ELECTRICALLY-RESISTIVE COVERING SEATED IN SAID GROOVE, THE WIDTH OF THE GROOVE BEING LESS THAN THE WIDTH OF THE COVERING, WHEREBY THE COVERING WILL BE COMPRESSED BETWEEN THE OPPOSED SIDE WALLS OF THE GROOVE AND IN INTIMATE, HEAT-TRANSFERRING CONTACT WITH THE SIDE WALLS AND BOTTOM OF THE GROOVE, SAID COVERING SUBSTANTIALLY FILLING THE GROOVE AND HAVING AN OUTER FACE SUBSTANTIALLY COPLANAR WITH THE REAR FACE OF SAID SHEET.
References Cited (Backward Citations)
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Cited
US2222192A
Cited
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Cited
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Cited
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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) | 1969-10-03 | 1970-04-04 | 1970-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-03 | 1974-04-04 | 1974-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-03 | 1978-04-04 | 1978-10-04 | $7700.00 | Window Closed / Lapsed |