Patent US2606086A successfully refreshed from Google Patents.
US2606086A
Expired / Lapsed
US
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Piston packing ring for lubrication
Assignee: Trico Products Corp
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Filing: 1946-03-30
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Granted: 1952-08-05
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Expires: 1966-03-30
Abstract
No abstract record available.
Inventors
- 👤 Rappl Anton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 08:26
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/16; F16J15/32; F16J15/324
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US334579A
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US713964A
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GB190902713A
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US1057112A
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US1273738A
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US1330979A
Cited
US1613410A
Cited
US2108339A
Cited
US2218638A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-08-05 | 1956-02-04 | 1956-08-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-08-05 | 1960-02-04 | 1960-08-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-08-05 | 1964-02-04 | 1964-08-05 | $7700.00 | Window Closed / Lapsed |