Patent US2837359A successfully refreshed from Google Patents.
US2837359A
Expired / Lapsed
US
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Metal reinforced rotary shaft seal
Assignee: Federal Mogul Bower Bearings Inc
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Filing: 1955-04-08
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Granted: 1958-06-03
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Expires: 1975-04-08
Abstract
No abstract record available.
Inventors
- 👤 George L Corsi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:22
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/16; F16J15/32; F16J15/3248; F16J15/328
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1195204A
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US2456615A
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US2173186A
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US2249141A
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US2208482A
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US2316713A
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US2587405A
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GB692717A
Cited
US2697623A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-06-02 | 1961-12-02 | 1962-06-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-06-02 | 1965-12-02 | 1966-06-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-06-02 | 1969-12-02 | 1970-06-03 | $7700.00 | Window Closed / Lapsed |