US3264595A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Three-electrode laminated heater
Assignee: Armstrong World Industries Inc
•
Filing: 1964-09-09
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Granted: 1966-08-02
•
Expires: 1984-09-09
Abstract
No abstract record available.
Inventors
- 👤 Jr Nathaniel E Hager
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 10:27
CPC Classifications
H; H05; H05B; H05B3/00; H05B3/10; H05B3/12; H05B3/14; H05B3/146
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
82 words
A THREE-ELECTRODE LAMINATED HEATER COMPRISING IN COMBINATION TWO OUTER OPPOSING METALLIC FOIL ELECTRODES HAVING ELECTRICAL POWER CONNECTIONS THEREON, AN INNER METALLIC FOIL ELECTRODE HAVING AN ELECTRICAL POWER CONNECTION THEREON AND POSITIONED CORRESPONDINGLY BETWEEN THE OUTER ELECTRODES, AND TWO SEMI-INSULATING LAYERS POSITIONED RESPECTIVELY BETWEEN AN OUTER ELECTRODE AND THE INNER ELECTRODE IN ELECTRICAL CONTACT THEREWITH AND ADAPTED TO GENERATE THE HEAT OUTPUT OF THE HEATER WHEN ELECTRICAL CURRENT FLOWS THROUGH THE THICKNESS THEREOF IN A DIRECTION PERPENDICULAR TO THE PLANE OF THE ELECTRODES.
Claim 2
Dependent Claim
82 words
A THREE-ELECTRODE LAMINATED HEATER COMPRISING IN COMBINATION TWO OUTER OPPOSING METALLIC FOIL ELECTRODES HAVING ELECTRICAL POWER CONNECTIONS THEREON, AN INNER METALLIC FOIL ELECTRODE HAVING AN ELECTRICAL POWER CONNECTION THEREON AND POSITIONED CORRESPONDINGLY BETWEEN THE OUTER ELECTRODES, AND TWO SEMI-INSULATING LAYERS POSITIONED RESPECTIVELY BETWEEN AN OUTER ELECTRODE AND THE INNER ELECTRODE IN ELECTRICAL CONTACT THEREWITH AND ADAPTED TO GENERATE THE HEAT OUTPUT OF THE HEATER WHEN ELECTRICAL CURRENT FLOWS THROUGH THE THICKNESS THEREOF IN A DIRECTION PERPENDICULAR TO THE PLANE OF THE ELECTRODES.
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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) | 1969-08-01 | 1970-01-31 | 1970-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-01 | 1974-01-31 | 1974-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-01 | 1978-01-31 | 1978-08-02 | $7700.00 | Window Closed / Lapsed |