US2516248A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for cooling rods
Assignee: Bethlehem Steel Corp
•
Filing: 1946-08-03
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Granted: 1950-07-25
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Expires: 1966-08-03
Abstract
No abstract record available.
Inventors
- 👤 James E O'brien
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:44
CPC Classifications
C; C21; C21D; C21D9/00; C21D9/52; C21D9/525; B; B21; B21C; B21C47/00; B21C47/26; C21D9/54; C21D9/56; C21D9/573; C21D9/5732
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US895973A
Cited
US1476333A
Cited
US1844135A
Cited
US1977989A
Cited
US2271379A
Cited
US2271372A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-07-24 | 1954-01-23 | 1954-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-07-24 | 1958-01-23 | 1958-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-07-24 | 1962-01-23 | 1962-07-25 | $7700.00 | Window Closed / Lapsed |