US3300253A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Resistance heating device and method for melting concrete
Assignee: Gas Technology Institute
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Filing: 1963-11-29
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Granted: 1967-01-24
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Expires: 1983-11-29
Abstract
No abstract record available.
Inventors
- 👤 Peter J Hylak
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 06:56
CPC Classifications
B; B28; B28D; B28D1/00; B28D1/22; B28D1/221; E; E01; E01C; E01C23/00; E01C23/06; E01C23/09; E01C23/0906; E01C23/0953; Y; Y10; Y10T; Y10T83/00; Y10T83/283; Y10T83/293
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
73 words
A METHOD FOR ELECTRICALLY MELTING PAVEMENT TO PROVIDE AN ELONGATED CUT THEREIN, SAID METHOD COMPRISING THE STEPS OF PASSING AN ELECTRICAL CURRENT THROUGH AN ELONGATED NARROW CONDUCTOR OF TUNGSTEN AND MOLYBDENUM IN ORDER TO RAISE THE TEMPERATURE OF SAID CONDUCTOR TO ABOUT 5,000*F., PLACING SAID CONDUCTOR AGAINST SAID PAVEMENT, FORCING SAID HEATED CONDUCTOR THROUGH SAID PAVEMENT TO EFFECT THE MELTING OF SAID CONCRETE TO PROVIDE THE DESIRED ELONGATED CUT, AND PERFORMING SAID MELTING
References Cited (Backward Citations)
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US1494033A
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US1898926A
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US2308860A
Cited
US2623149A
Cited
US2935593A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-01-23 | 1970-07-25 | 1971-01-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-23 | 1974-07-25 | 1975-01-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-23 | 1978-07-25 | 1979-01-24 | $7700.00 | Window Closed / Lapsed |