Patent US2417610A successfully refreshed from Google Patents.
US2417610A
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US
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Method of manufacturing piston rings
Assignee: Hastings Manufacturing Co
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Filing: 1944-05-11
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Granted: 1947-03-18
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Expires: 1964-05-11
Abstract
No abstract record available.
Inventors
- 👤 Harold P Phillips
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 21:34
CPC Classifications
C; C21; C21D; C21D9/00; C21D9/40
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2202759A
Cited
US2125606A
Cited
GB491919A
Cited
US2315798A
Cited
US2280552A
Cited
US2281334A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-03-17 | 1950-09-16 | 1951-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-03-17 | 1954-09-16 | 1955-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-03-17 | 1958-09-16 | 1959-03-18 | $7700.00 | Window Closed / Lapsed |