US3015154A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ribbed extrusion billet
Assignee: Babcock and Wilcox Co
•
Filing: 1954-03-15
•
Granted: 1962-01-02
•
Expires: 1974-03-15
Abstract
No abstract record available.
Inventors
- 👤 Sidley O Evans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:40
CPC Classifications
B; B21; B21C; B21C23/00; B21C23/32; Y; Y10; Y10T; Y10T428/00; Y10T428/12; Y10T428/12229; Y10T428/12292
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US52541A
Cited
US1049641A
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US1587933A
Cited
US1761980A
Cited
US1817301A
Cited
US1767174A
Cited
US1810041A
Cited
US2005175A
Cited
US2406838A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-01-01 | 1965-07-03 | 1966-01-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-01-01 | 1969-07-03 | 1970-01-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-01-01 | 1973-07-03 | 1974-01-02 | $7700.00 | Window Closed / Lapsed |