US3137785A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric baseboard heater
Assignee: Thermel Inc
•
Filing: 1959-11-13
•
Granted: 1964-06-16
•
Expires: 1979-11-13
Abstract
No abstract record available.
Inventors
- 👤 William H Norton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 04:23
CPC Classifications
F; F24; F24H; F24H3/00; F24H3/002; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/4935; Y10T29/49377; Y10T29/49378
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
99 words
AN ELECTRIC BASEBOARD HEATING UNIT COMPRISING A FIRST EXTRUDED ELONGATED ALUMINUM BODY HAVING A PLURALITY OF LONGITUDINALLY EXTENDING FINS THEREON, A SECOND EXTRUDED ELONGATED ALUMINUM BODY HAVING A PLURALITY OF LONGITUDINALLY EXTENDING FINS THEREON, SAID BODIES POSITIONED IN END TO END RELATIONSHIP WITH A SPACE THEREBETWEEN, A WATERPROOF CONNECTOR BOX IN SAID SPACE BETWEEN SAID BODIES, MEANS DEFINING ELONGATED EXTRUDED OPENINGS THROUGH EACH OF SAID BODIES, FIRST AND SECOND TUBULAR HEATING ELEMENTS POSITIONED IN THE OPENINGS IN SAID BODIES AND PROJECTING INTO SAID CONNECTOR BOX, AND MEANS SEALING THE TUBULAR HEATING ELEMENTS TO THE WALLS OF THE CONNECTOR BOX.
Claim 2
Dependent Claim
99 words
AN ELECTRIC BASEBOARD HEATING UNIT COMPRISING A FIRST EXTRUDED ELONGATED ALUMINUM BODY HAVING A PLURALITY OF LONGITUDINALLY EXTENDING FINS THEREON, A SECOND EXTRUDED ELONGATED ALUMINUM BODY HAVING A PLURALITY OF LONGITUDINALLY EXTENDING FINS THEREON, SAID BODIES POSITIONED IN END TO END RELATIONSHIP WITH A SPACE THEREBETWEEN, A WATERPROOF CONNECTOR BOX IN SAID SPACE BETWEEN SAID BODIES, MEANS DEFINING ELONGATED EXTRUDED OPENINGS THROUGH EACH OF SAID BODIES, FIRST AND SECOND TUBULAR HEATING ELEMENTS POSITIONED IN THE OPENINGS IN SAID BODIES AND PROJECTING INTO SAID CONNECTOR BOX, AND MEANS SEALING THE TUBULAR HEATING ELEMENTS TO THE WALLS OF THE CONNECTOR BOX.
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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) | 1967-06-16 | 1967-12-16 | 1968-06-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-16 | 1971-12-16 | 1972-06-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-16 | 1975-12-16 | 1976-06-16 | $7700.00 | Window Closed / Lapsed |