US3015387A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for metal working
Assignee: Babcock and Wilcox Co
•
Filing: 1958-04-29
•
Granted: 1962-01-02
•
Expires: 1978-04-29
Abstract
No abstract record available.
Inventors
- 👤 Sidley O Evans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 16:31
CPC Classifications
B; B21; B21C; B21C23/00; B21C23/32; B21C23/21; B21C23/211; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/4981; Y10T29/49812
Claims Analysis
Total Claims: 0
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US724270A
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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 |