US3142482A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Carbon body baking furnace
Assignee: GREAT LAKES CARBON Corp
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Filing: 1961-03-21
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Granted: 1964-07-28
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Expires: 1981-03-21
Abstract
No abstract record available.
Inventors
- 👤 Wilfred M Kenan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 23:33
CPC Classifications
H; H05; H05B; H05B7/00; H05B7/02; H05B7/06; H05B7/08; H05B7/085; C; C01; C01B; C01B32/00; F; F27; F27B; F27B17/00; F27B17/0016
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
43 words
IN A CARBON BODY BAKING FURNACE OF THE TYPE EMPLOYED FOR BAKING CARBON ELECTODES HAVING A COVER AND A BOTTOM AND WALLS THEREBETWEEN, AND A HEATING MEANS AND AN EXHAUST MEANS, THE IMPROVEMENT WHICH COMPRISES A METALLIC FLUE SYSTEM WITHIN SAID FURNACE COMMUNICATING
Claim 2
Dependent Claim
43 words
IN A CARBON BODY BAKING FURNACE OF THE TYPE EMPLOYED FOR BAKING CARBON ELECTODES HAVING A COVER AND A BOTTOM AND WALLS THEREBETWEEN, AND A HEATING MEANS AND AN EXHAUST MEANS, THE IMPROVEMENT WHICH COMPRISES A METALLIC FLUE SYSTEM WITHIN SAID FURNACE COMMUNICATING
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) | 1967-07-28 | 1968-01-27 | 1968-07-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-07-28 | 1972-01-27 | 1972-07-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-07-28 | 1976-01-27 | 1976-07-28 | $7700.00 | Window Closed / Lapsed |