US2827279A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tuyeres provided with coolant passages
Assignee: American Brake Shoe Co
•
Filing: 1955-09-20
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Granted: 1958-03-18
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Expires: 1975-09-20
Abstract
No abstract record available.
Inventors
- 👤 Cox Isaac Eugene
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 18:00
CPC Classifications
C; C21; C21C; C21C5/00; C21C5/28; C21C5/42; C21C5/46; C21C5/48
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US257571A
Cited
US655528A
Cited
US1773944A
Cited
GB437046A
Cited
DE719133C
Cited
FR854202A
Cited
FR1087147A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-03-17 | 1961-09-16 | 1962-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-03-17 | 1965-09-16 | 1966-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-03-17 | 1969-09-16 | 1970-03-18 | $7700.00 | Window Closed / Lapsed |