Patent US2888280A successfully refreshed from Google Patents.
US2888280A
Expired / Lapsed
US
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Seal
Assignee: Muskegon Piston Ring Co
•
Filing: 1954-06-30
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Granted: 1959-05-26
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Expires: 1974-06-30
Abstract
No abstract record available.
Inventors
- 👤 Walter W Meyer
- 👤 Richard J Hicks
- 👤 Leonard N Dolhun
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:56
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/16; F16J15/34; F16J15/36; F16C; F16C33/00; F16C33/72; F16C33/74
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2296724A
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US2347118A
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US2385420A
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US2414600A
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US2444713A
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US2489781A
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US2447930A
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US2615739A
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US2672360A
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US2701154A
Cited
US2639170A
Cited
US2722439A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-05-25 | 1962-11-24 | 1963-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-05-25 | 1966-11-24 | 1967-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-05-25 | 1970-11-24 | 1971-05-26 | $7700.00 | Window Closed / Lapsed |