US2565042A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Piston ring
Assignee: Hastings Manufacturing Co
•
Filing: 1948-05-17
•
Granted: 1951-08-21
•
Expires: 1968-05-17
Abstract
No abstract record available.
Inventors
- 👤 Harold P Phillips
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 01:26
CPC Classifications
F; F16; F16J; F16J9/00; F16J9/06; F16J9/064; F16J9/066
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1356258A
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US1544180A
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US1956014A
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FR840101A
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US2281873A
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US2367159A
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US2281123A
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US2236721A
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US2313395A
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US2380654A
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US2404862A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-08-20 | 1955-02-19 | 1955-08-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-08-20 | 1959-02-19 | 1959-08-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-08-20 | 1963-02-19 | 1963-08-21 | $7700.00 | Window Closed / Lapsed |