Patent US2719907A successfully refreshed from Google Patents.
US2719907A
Expired / Lapsed
US
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Heating tape and method of making same
Assignee: Connecticut Hard Rubber Co
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Filing: 1952-04-19
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Granted: 1955-10-04
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Expires: 1972-04-19
Abstract
No abstract record available.
Inventors
- 👤 Raymond M Combs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 06:35
CPC Classifications
H; H05; H05B; H05B3/00; H05B3/40; H05B3/54; H05B3/56; H05B3/10; H05B3/16; H05B3/565
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
113 words
A HEATING TAPE COMPRISING A FLAT STRIP OF MOLDABLE INSULATING MATERIAL, AND A RESISTANCE ELEMENT THEREFOR COMPRISING AN ELONGATED COIL OF CONDUCTING WIRE ARRANGED IN LOOPS ON, AND EMBEDDED IN, SAID STRIP TO EXTEND BACK AND FORTH ACROSS THE SAME AND TO EXTEND SUBSTANTIALLY THROUGHOUT THE LENGTH OF THE STRIP, A CONDUCTOR EXTENDING ALONG EACH EDGE OF THE STRIP, AND SAID RESISTANCE ELEMENT BEING CONNECTED AT SPACED POINTS WITH EACH OF SAID CONDUCTORS, THE CONNECTIONS OF THE RESISTANCE ELEMENT WITH THE CONDUCTOR AT ONE EDGE OF THE STRIP ALTERNATING WITH THE CONNECTIONS OF THE HEATING ELEMENT WITH THE CONDUCTOR AT THE OTHER EDGE OF THE STRIP TO FORM A SERIES OF HEATING ELEMENTS
Claim 2
Dependent Claim
113 words
A HEATING TAPE COMPRISING A FLAT STRIP OF MOLDABLE INSULATING MATERIAL, AND A RESISTANCE ELEMENT THEREFOR COMPRISING AN ELONGATED COIL OF CONDUCTING WIRE ARRANGED IN LOOPS ON, AND EMBEDDED IN, SAID STRIP TO EXTEND BACK AND FORTH ACROSS THE SAME AND TO EXTEND SUBSTANTIALLY THROUGHOUT THE LENGTH OF THE STRIP, A CONDUCTOR EXTENDING ALONG EACH EDGE OF THE STRIP, AND SAID RESISTANCE ELEMENT BEING CONNECTED AT SPACED POINTS WITH EACH OF SAID CONDUCTORS, THE CONNECTIONS OF THE RESISTANCE ELEMENT WITH THE CONDUCTOR AT ONE EDGE OF THE STRIP ALTERNATING WITH THE CONNECTIONS OF THE HEATING ELEMENT WITH THE CONDUCTOR AT THE OTHER EDGE OF THE STRIP TO FORM A SERIES OF HEATING ELEMENTS
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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) | 1958-10-03 | 1959-04-04 | 1959-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-10-03 | 1963-04-04 | 1963-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-10-03 | 1967-04-04 | 1967-10-04 | $7700.00 | Window Closed / Lapsed |