Patent US2815255A successfully refreshed from Google Patents.
US2815255A
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Piston having a lined ring groove and liner therefor
Assignee: Hastings Manufacturing Co
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Filing: 1955-08-22
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Granted: 1957-12-03
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Expires: 1975-08-22
Abstract
No abstract record available.
Inventors
- 👤 Harold P Phillips
- 👤 Ernest J Morgan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 07:41
CPC Classifications
F; F16; F16J; F16J9/00; F16J9/12; F16J9/22; Y; Y10; Y10S; Y10S277/00; Y10S277/924; Y10T; Y10T29/00; Y10T29/49; Y10T29/49229; Y10T29/49249; Y10T29/49265; Y10T29/49826; Y10T29/49908; Y10T29/49915; Y10T29/49938; Y10T29/4994
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-12-02 | 1961-06-03 | 1961-12-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-12-02 | 1965-06-03 | 1965-12-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-12-02 | 1969-06-03 | 1969-12-03 | $7700.00 | Window Closed / Lapsed |