US2594552A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Angular piercing tool
Assignee: AO Smith Corp
•
Filing: 1948-02-02
•
Granted: 1952-04-29
•
Expires: 1968-02-02
Abstract
No abstract record available.
Inventors
- 👤 Neil B Granberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 08:09
CPC Classifications
B; B21; B21D; B21D28/00; B21D28/24; B21D28/32; Y; Y10; Y10T; Y10T83/00; Y10T83/869; Y10T83/8735; Y10T83/8736; Y10T83/8821; Y10T83/8841
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE440076C
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US665175A
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US1460697A
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US1766214A
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US1812046A
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US1920303A
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US1935854A
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US2373962A
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US2410372A
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US2421864A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-04-29 | 1955-10-29 | 1956-04-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-04-29 | 1959-10-29 | 1960-04-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-04-29 | 1963-10-29 | 1964-04-29 | $7700.00 | Window Closed / Lapsed |