US3091682A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heating unit with collapsible terminals
Assignee: General Electric Co
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Filing: 1961-04-17
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Granted: 1963-05-28
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Expires: 1981-04-17
Abstract
No abstract record available.
Inventors
- 👤 Marvin E Prather
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:58
CPC Classifications
F; F24; F24C; F24C15/00; F24C15/10; F24C15/102; F24C15/104
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
75 words
A METAL SHEATED HEATING ELEMENT COMPRISING AN INNER RESISTANCE COIL EMBEDDED IN A MASS OF ELECTRICAL INSULATING MATERIAL, AND AN OUTER METAL SHEATH COVERING THE INSULATION, THE TERMINAL ENDS OF THE HEATING ELEMENT BEING COMPRESSIBLE TO FACILITATE THE EASE OF BENDING THE TERMINALS ABOUT SHARP CURVES, THE COMPRESSIBLE TERMINAL ENDS INCLUDING A COLLAPSIBLE TUBE WHICH EXTENDS THERETHROUGH AND IS CONNECTED TO THE RESISTANCE COIL AT ONE END OUTSIDE THE AREA OF THE COMPRESSIBLE TERMINAL PORTION.
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) | 1966-05-27 | 1966-11-26 | 1967-05-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-05-27 | 1970-11-26 | 1971-05-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-05-27 | 1974-11-26 | 1975-05-28 | $7700.00 | Window Closed / Lapsed |