US2573295A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bead trimmer
Assignee: Babcock and Wilcox Tube Co
•
Filing: 1946-02-15
•
Granted: 1951-10-30
•
Expires: 1966-02-15
Abstract
No abstract record available.
Inventors
- 👤 Ernst W Allardt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:41
CPC Classifications
B; B23; B23D; B23D79/00; B23D79/02; B23D79/021; B23D79/023; Y; Y10; Y10T; Y10T409/00; Y10T409/50; Y10T409/501476; Y10T409/50164; Y10T409/501804
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1212503A
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US2025422A
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US2053831A
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US2286513A
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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) | 1954-10-29 | 1955-04-30 | 1955-10-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-10-29 | 1959-04-30 | 1959-10-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-10-29 | 1963-04-30 | 1963-10-30 | $7700.00 | Window Closed / Lapsed |