US3259208A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for lining of metallurgical furnaces, particularly converters
Assignee: BETEILIGUNGSUND PATENTVERWALTU
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Filing: 1964-10-13
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Granted: 1966-07-05
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Expires: 1984-10-13
Abstract
No abstract record available.
Inventors
- 👤 Behr Hugo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 04:43
CPC Classifications
C; C21; C21C; C21C5/00; C21C5/28; C21C5/42; C21C5/44; C21C5/441; E; E04; E04G; E04G1/00; E04G1/15; E04G1/152; E04G1/36; E04G1/362
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
67 words
AN APPARATUS FOR LINING OF A METALLURGICAL FURNACE WHICH HAS A BOTTOM OPENING OF A LARGER DIAMETER THAN THE TOP OF SAID FURNACE, COMPRISING A MAIN WORKING PLATFORM HAVING AN OUTER DIAMETER SUBSTANTIALLY COMPLEMENTARY TO SAID BOTTOM OPENING OF SAID FURNACE, MEANS FOR LIFTING AND LOWERING SAID MAIN WORKING PLATFORM, THE LATTER HAVING A LARGE UNOBSTRUCTED OPENING ADAPTED TO PASS LINING MATERIAL THERETHROUGH INTO SAID FURNACE, AND
Claim 2
Independent Claim
67 words
AN APPARATUS FOR LINING OF A METALLURGICAL FURNACE WHICH HAS A BOTTOM OPENING OF A LARGER DIAMETER THAN THE TOP OF SAID FURNACE, COMPRISING A MAIN WORKING PLATFORM HAVING AN OUTER DIAMETER SUBSTANTIALLY COMPLEMENTARY TO SAID BOTTOM OPENING OF SAID FURNACE, MEANS FOR LIFTING AND LOWERING SAID MAIN WORKING PLATFORM, THE LATTER HAVING A LARGE UNOBSTRUCTED OPENING ADAPTED TO PASS LINING MATERIAL THERETHROUGH INTO SAID FURNACE, AND
References Cited (Backward Citations)
US2689025A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-07-04 | 1970-01-03 | 1970-07-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-04 | 1974-01-03 | 1974-07-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-04 | 1978-01-03 | 1978-07-05 | $7700.00 | Window Closed / Lapsed |