US2663558A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Furnace conveyer element
Assignee: Blaw Knox Co
•
Filing: 1949-01-21
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Granted: 1953-12-22
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Expires: 1969-01-21
Abstract
No abstract record available.
Inventors
- 👤 Martin N Ornitz
- 👤 Ray H English
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:25
CPC Classifications
F; F27; F27D; F27D3/00; F27D3/02; F27D3/026; Y; Y10; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12535; Y10T428/12583; Y10T428/1259
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
48 words
IN COMBINATION, A FURNACE CONVEYOR ELEMENT HAVING A WORK-SUPPORTING FERROUS OF ALLOY BODY, SAID BODY HAVING A MELTING POINT ABOVE ABOUT 1400* F., AN ALUMINUM OXIDE SURFACE COVERING THE WORK-ENGAGING PORTION OF SAID BODY, SAID SURFACE BEING IN WELD RELATION TO THE WORK-ENGAGING EXTERIOR PORTION OF SAID BODY.
Claim 2
Dependent Claim
48 words
IN COMBINATION, A FURNACE CONVEYOR ELEMENT HAVING A WORK-SUPPORTING FERROUS OF ALLOY BODY, SAID BODY HAVING A MELTING POINT ABOVE ABOUT 1400* F., AN ALUMINUM OXIDE SURFACE COVERING THE WORK-ENGAGING PORTION OF SAID BODY, SAID SURFACE BEING IN WELD RELATION TO THE WORK-ENGAGING EXTERIOR PORTION OF SAID BODY.
References Cited (Backward Citations)
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US2167701A
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US2151048A
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-12-21 | 1957-06-22 | 1957-12-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-12-21 | 1961-06-22 | 1961-12-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-12-21 | 1965-06-22 | 1965-12-22 | $7700.00 | Window Closed / Lapsed |